<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessCombination" xlink:href="wgo-20190831.xsd#BusinessCombination" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessCombinationDetails" xlink:href="wgo-20190831.xsd#BusinessCombinationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessCombinationNarrativeDetails" xlink:href="wgo-20190831.xsd#BusinessCombinationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessCombinationProformaInformationDetails" xlink:href="wgo-20190831.xsd#BusinessCombinationProformaInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessCombinationTables" xlink:href="wgo-20190831.xsd#BusinessCombinationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessSegments" xlink:href="wgo-20190831.xsd#BusinessSegments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessSegmentsDetails" xlink:href="wgo-20190831.xsd#BusinessSegmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessSegmentsRevenuesByGeographicAreaDetails" xlink:href="wgo-20190831.xsd#BusinessSegmentsRevenuesByGeographicAreaDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/BusinessSegmentsTables" xlink:href="wgo-20190831.xsd#BusinessSegmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ComprehensiveIncome" xlink:href="wgo-20190831.xsd#ComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ComprehensiveIncomeChangesInAociByComponentDetails" xlink:href="wgo-20190831.xsd#ComprehensiveIncomeChangesInAociByComponentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ComprehensiveIncomeReclassificationOutOfAociDetails" xlink:href="wgo-20190831.xsd#ComprehensiveIncomeReclassificationOutOfAociDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ComprehensiveIncomeTables" xlink:href="wgo-20190831.xsd#ComprehensiveIncomeTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedBalanceSheets" xlink:href="wgo-20190831.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedBalanceSheetsConsolidatedBalanceSheetsParenthetical" xlink:href="wgo-20190831.xsd#ConsolidatedBalanceSheetsConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="wgo-20190831.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:href="wgo-20190831.xsd#ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" xlink:href="wgo-20190831.xsd#ConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParenthetical" xlink:href="wgo-20190831.xsd#ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncome" xlink:href="wgo-20190831.xsd#ConsolidatedStatementsOfOperationsAndComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitments" xlink:href="wgo-20190831.xsd#ContingentLiabilitesAndCommitments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsLeaseCommitmentsDetails" xlink:href="wgo-20190831.xsd#ContingentLiabilitesAndCommitmentsLeaseCommitmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsRepurchaseCommitmentsDetails" xlink:href="wgo-20190831.xsd#ContingentLiabilitesAndCommitmentsRepurchaseCommitmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsScheduleOfRepurchasedActivityDetails" xlink:href="wgo-20190831.xsd#ContingentLiabilitesAndCommitmentsScheduleOfRepurchasedActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsTables" xlink:href="wgo-20190831.xsd#ContingentLiabilitesAndCommitmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurements" xlink:href="wgo-20190831.xsd#DerivativesInvestmentsAndFairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurementsFairValueInputsDetails" xlink:href="wgo-20190831.xsd#DerivativesInvestmentsAndFairValueMeasurementsFairValueInputsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurementsNarrativeDetails" xlink:href="wgo-20190831.xsd#DerivativesInvestmentsAndFairValueMeasurementsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurementsTables" xlink:href="wgo-20190831.xsd#DerivativesInvestmentsAndFairValueMeasurementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/DocumentAndEntityInformation" xlink:href="wgo-20190831.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefits" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefits" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsDeferredCompensationNarrativeDetails" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefitsDeferredCompensationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsInvestmentInLifeInsuranceDetails" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefitsInvestmentInLifeInsuranceDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsPostretirementBenefitIncomeDetails" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefitsPostretirementBenefitIncomeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsPostretirementHealthCareAndDeferredCompensationBenefitsDetails" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefitsPostretirementHealthCareAndDeferredCompensationBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsPostretirementNarrativeDetails" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefitsPostretirementNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsTables" xlink:href="wgo-20190831.xsd#EmployeeAndRetireeBenefitsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsFutureAmortizationOfIntangibleAssetsDetails" xlink:href="wgo-20190831.xsd#GoodwillAndIntangibleAssetsFutureAmortizationOfIntangibleAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssets" xlink:href="wgo-20190831.xsd#GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssetsTables" xlink:href="wgo-20190831.xsd#GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsScheduleOfGoodwillDetails" xlink:href="wgo-20190831.xsd#GoodwillAndIntangibleAssetsScheduleOfGoodwillDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails" xlink:href="wgo-20190831.xsd#GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomePerShare" xlink:href="wgo-20190831.xsd#IncomePerShare" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomePerShareCalculationOfBasicAndDilutedIncomePerShareDetails" xlink:href="wgo-20190831.xsd#IncomePerShareCalculationOfBasicAndDilutedIncomePerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomePerShareTables" xlink:href="wgo-20190831.xsd#IncomePerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxes" xlink:href="wgo-20190831.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxesChangesInUnrecognizedTaxBenefitsDetails" xlink:href="wgo-20190831.xsd#IncomeTaxesChangesInUnrecognizedTaxBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxesComponentsOfIncomeTaxBenefitProvisionDetails" xlink:href="wgo-20190831.xsd#IncomeTaxesComponentsOfIncomeTaxBenefitProvisionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxesNarrativeDetails" xlink:href="wgo-20190831.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxesReconciliationOfUSStatutoryIncomeTaxRateDetails" xlink:href="wgo-20190831.xsd#IncomeTaxesReconciliationOfUSStatutoryIncomeTaxRateDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxesSignificantItemsComprisingDeferredTaxesDetails" xlink:href="wgo-20190831.xsd#IncomeTaxesSignificantItemsComprisingDeferredTaxesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/IncomeTaxesTables" xlink:href="wgo-20190831.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/InterimFinancialInformationUnaudited" xlink:href="wgo-20190831.xsd#InterimFinancialInformationUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/InterimFinancialInformationUnauditedDetails" xlink:href="wgo-20190831.xsd#InterimFinancialInformationUnauditedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/InterimFinancialInformationUnauditedTables" xlink:href="wgo-20190831.xsd#InterimFinancialInformationUnauditedTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/Inventories" xlink:href="wgo-20190831.xsd#Inventories" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/InventoriesInventoryBasisDetails" xlink:href="wgo-20190831.xsd#InventoriesInventoryBasisDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/InventoriesInventoryScheduleDetails" xlink:href="wgo-20190831.xsd#InventoriesInventoryScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/InventoriesTables" xlink:href="wgo-20190831.xsd#InventoriesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/LongTermDebtComponentsOfLongTermDebtDetails" xlink:href="wgo-20190831.xsd#LongTermDebtComponentsOfLongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/LongTermDebtContractualMaturitiesDetails" xlink:href="wgo-20190831.xsd#LongTermDebtContractualMaturitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/LongTermDebtDetails" xlink:href="wgo-20190831.xsd#LongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/LongTermDebtNotes" xlink:href="wgo-20190831.xsd#LongTermDebtNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/LongTermDebtTables" xlink:href="wgo-20190831.xsd#LongTermDebtTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/PropertyPlantAndEquipment" xlink:href="wgo-20190831.xsd#PropertyPlantAndEquipment" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/PropertyPlantAndEquipmentPropertyPlantAndEquipmentDetails" xlink:href="wgo-20190831.xsd#PropertyPlantAndEquipmentPropertyPlantAndEquipmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/PropertyPlantAndEquipmentPropertyPlantAndEquipmentNarrativeDetails" xlink:href="wgo-20190831.xsd#PropertyPlantAndEquipmentPropertyPlantAndEquipmentNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/PropertyPlantAndEquipmentTables" xlink:href="wgo-20190831.xsd#PropertyPlantAndEquipmentTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/RestructuringDetails" xlink:href="wgo-20190831.xsd#RestructuringDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/RestructuringNotes" xlink:href="wgo-20190831.xsd#RestructuringNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/RestructuringTables" xlink:href="wgo-20190831.xsd#RestructuringTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/RevenueDetails" xlink:href="wgo-20190831.xsd#RevenueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/RevenueNotes" xlink:href="wgo-20190831.xsd#RevenueNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/RevenueTables" xlink:href="wgo-20190831.xsd#RevenueTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlans" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlans" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlansExpenseComponentsDetails" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlansExpenseComponentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlansNarrativeDetails" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlansNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlansShareAwardsActivityDetails" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlansShareAwardsActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlansStockOptionActivityDetails" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlansStockOptionActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlansStockOptionValuationAssumptionsDetails" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlansStockOptionValuationAssumptionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/StockBasedCompensationPlansTables" xlink:href="wgo-20190831.xsd#StockBasedCompensationPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="wgo-20190831.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="wgo-20190831.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="wgo-20190831.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails" xlink:href="wgo-20190831.xsd#SummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="wgo-20190831.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/Warranty" xlink:href="wgo-20190831.xsd#Warranty" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/WarrantyScheduleOfProductWarrantyLiabilityDetails" xlink:href="wgo-20190831.xsd#WarrantyScheduleOfProductWarrantyLiabilityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.winnebagoind.com/role/WarrantyTables" xlink:href="wgo-20190831.xsd#WarrantyTables" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessCombination" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessCombinationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_76015D3EAA43D6774670F89B38DB9F79" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_76015D3EAA43D6774670F89B38DB9F79" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_56830DE192992E819FDFF89B38DB66A8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_76015D3EAA43D6774670F89B38DB9F79" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_56830DE192992E819FDFF89B38DB66A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_3A327404C4DC73099DE8F89B38DCCE53_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_56830DE192992E819FDFF89B38DB66A8" xlink:to="loc_us-gaap_SegmentDomain_3A327404C4DC73099DE8F89B38DCCE53_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_3A327404C4DC73099DE8F89B38DCCE53" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_56830DE192992E819FDFF89B38DB66A8" xlink:to="loc_us-gaap_SegmentDomain_3A327404C4DC73099DE8F89B38DCCE53" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TowableMember" xlink:label="loc_wgo_TowableMember_D22961F85E36BCBEDDC0F89B38DC9BF5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_3A327404C4DC73099DE8F89B38DCCE53" xlink:to="loc_wgo_TowableMember_D22961F85E36BCBEDDC0F89B38DC9BF5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_CCBA0CC9375D9A0CA1CCF89B38DC2F98" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_76015D3EAA43D6774670F89B38DB9F79" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_CCBA0CC9375D9A0CA1CCF89B38DC2F98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0ABB04102D9C9AFD4E6BF89B38DCC68F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_CCBA0CC9375D9A0CA1CCF89B38DC2F98" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0ABB04102D9C9AFD4E6BF89B38DCC68F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0ABB04102D9C9AFD4E6BF89B38DCC68F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_CCBA0CC9375D9A0CA1CCF89B38DC2F98" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0ABB04102D9C9AFD4E6BF89B38DCC68F" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_GrandDesignMember" xlink:label="loc_wgo_GrandDesignMember_A6C7133141DDB10C32F1F89B38DDA0D3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0ABB04102D9C9AFD4E6BF89B38DCC68F" xlink:to="loc_wgo_GrandDesignMember_A6C7133141DDB10C32F1F89B38DDA0D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_CCA17BF2D5F8FC822655F89B38DD9A63" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_CCA17BF2D5F8FC822655F89B38DD9A63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_D2682E344043404E6AD8F89B38DE07B2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_D2682E344043404E6AD8F89B38DE07B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_C93756EFE169C7FF21DAF89B38DE552B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_C93756EFE169C7FF21DAF89B38DE552B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:label="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_00894D1405EAABC2FD58F89B38DEBA41" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_00894D1405EAABC2FD58F89B38DEBA41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionSharePrice" xlink:label="loc_us-gaap_BusinessAcquisitionSharePrice_E10CA1C812E3DACDDCF7F89B38DEE624" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_us-gaap_BusinessAcquisitionSharePrice_E10CA1C812E3DACDDCF7F89B38DEE624" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_BusinessAcquisitionEquityInterestSoldNumberofShares" xlink:label="loc_wgo_BusinessAcquisitionEquityInterestSoldNumberofShares_26237754E6869DF131D8F89B38DE882D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A94AE99878DAC656C07EF89B38DD0982" xlink:to="loc_wgo_BusinessAcquisitionEquityInterestSoldNumberofShares_26237754E6869DF131D8F89B38DE882D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessCombinationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_F697BA5E42E967C179ECF89B38E6FD1D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F5C72A44621859A9203F89B38E3BBEF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_F697BA5E42E967C179ECF89B38E6FD1D" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F5C72A44621859A9203F89B38E3BBEF" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_C4A5643821617DE468EDF89B38E41C05" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F5C72A44621859A9203F89B38E3BBEF" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_C4A5643821617DE468EDF89B38E41C05" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_C4A5643821617DE468EDF89B38E41C05" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_C4A5643821617DE468EDF89B38E41C05" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_GrandDesignMember" xlink:label="loc_wgo_GrandDesignMember_8958C581761191D06474F89B38E45379" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0" xlink:to="loc_wgo_GrandDesignMember_8958C581761191D06474F89B38E45379" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_GrandDesignMemberInterestMember" xlink:label="loc_wgo_GrandDesignMemberInterestMember_D8C64DE290141EBFADD7F89B38E4E54F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0" xlink:to="loc_wgo_GrandDesignMemberInterestMember_D8C64DE290141EBFADD7F89B38E4E54F" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_BlockerCorpMember" xlink:label="loc_wgo_BlockerCorpMember_4A9D10C3763F3236C3CEF89B38E500D9" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8625293DB775C0FBEBACF89B38E43DB0" xlink:to="loc_wgo_BlockerCorpMember_4A9D10C3763F3236C3CEF89B38E500D9" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_4D78BEFF9D4A6924BC10F89B38E58E4D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F5C72A44621859A9203F89B38E3BBEF" xlink:to="loc_dei_LegalEntityAxis_4D78BEFF9D4A6924BC10F89B38E58E4D" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_9F10D831B7D84A945A74F89B38E53320_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_4D78BEFF9D4A6924BC10F89B38E58E4D" xlink:to="loc_dei_EntityDomain_9F10D831B7D84A945A74F89B38E53320_default" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_9F10D831B7D84A945A74F89B38E53320" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_4D78BEFF9D4A6924BC10F89B38E58E4D" xlink:to="loc_dei_EntityDomain_9F10D831B7D84A945A74F89B38E53320" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ChrisCraftMember" xlink:label="loc_wgo_ChrisCraftMember_27537A81D53886216D16F89B38E5E95E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9F10D831B7D84A945A74F89B38E53320" xlink:to="loc_wgo_ChrisCraftMember_27537A81D53886216D16F89B38E5E95E" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_GrandDesignMember" xlink:label="loc_wgo_GrandDesignMember_421E4B815F41BB9F6D91F89B38E6773A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9F10D831B7D84A945A74F89B38E53320" xlink:to="loc_wgo_GrandDesignMember_421E4B815F41BB9F6D91F89B38E6773A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_2D50581BB27BA4AE877AF89B38E6D5B8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_F697BA5E42E967C179ECF89B38E6FD1D" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_2D50581BB27BA4AE877AF89B38E6D5B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_04169D4CD0E0D6FED4D3F89B38E69F6B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_F697BA5E42E967C179ECF89B38E6FD1D" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_04169D4CD0E0D6FED4D3F89B38E69F6B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_54D58A10846D6A82F71EF89B38E7ABFF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_F697BA5E42E967C179ECF89B38E6FD1D" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_54D58A10846D6A82F71EF89B38E7ABFF" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessCombinationProformaInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D93B22C454ECA3168E68F06802CDF203" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D93B22C454ECA3168E68F06802CDF203" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_CB220B62C054404DCEBAF06802CD7B6F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D93B22C454ECA3168E68F06802CDF203" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_CB220B62C054404DCEBAF06802CD7B6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3464CAC6851C936FFBDDF06802CD77E2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_CB220B62C054404DCEBAF06802CD7B6F" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3464CAC6851C936FFBDDF06802CD77E2_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3464CAC6851C936FFBDDF06802CD77E2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_CB220B62C054404DCEBAF06802CD7B6F" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3464CAC6851C936FFBDDF06802CD77E2" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_GrandDesignMember" xlink:label="loc_wgo_GrandDesignMember_6C4639C8DA65EC784987F06802CEFF58" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3464CAC6851C936FFBDDF06802CD77E2" xlink:to="loc_wgo_GrandDesignMember_6C4639C8DA65EC784987F06802CEFF58" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonrecurringAdjustmentAxis" xlink:label="loc_us-gaap_NonrecurringAdjustmentAxis_E2BF82016542CD7EB383F06802CEE43A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D93B22C454ECA3168E68F06802CDF203" xlink:to="loc_us-gaap_NonrecurringAdjustmentAxis_E2BF82016542CD7EB383F06802CEE43A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonrecurringAdjustmentDomain" xlink:label="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_NonrecurringAdjustmentAxis_E2BF82016542CD7EB383F06802CEE43A" xlink:to="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonrecurringAdjustmentDomain" xlink:label="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_NonrecurringAdjustmentAxis_E2BF82016542CD7EB383F06802CEE43A" xlink:to="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_AmortizationofIntangibles1YearorLessUsefulLifeMember" xlink:label="loc_wgo_AmortizationofIntangibles1YearorLessUsefulLifeMember_71625B63B50B94DAB867F06802CEA463" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:to="loc_wgo_AmortizationofIntangibles1YearorLessUsefulLifeMember_71625B63B50B94DAB867F06802CEA463" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_IncreaseinAmortizationofIntangiblesMember" xlink:label="loc_wgo_IncreaseinAmortizationofIntangiblesMember_EC6C3A912E09F10A4BFDF06802CFF5E0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:to="loc_wgo_IncreaseinAmortizationofIntangiblesMember_EC6C3A912E09F10A4BFDF06802CFF5E0" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ExpensesRelatedtoBusinessCombinationMember" xlink:label="loc_wgo_ExpensesRelatedtoBusinessCombinationMember_7942EE581B3581D2884AF06802CF4E9F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:to="loc_wgo_ExpensesRelatedtoBusinessCombinationMember_7942EE581B3581D2884AF06802CF4E9F" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_InteresttoReflectNewDebtStructureMember" xlink:label="loc_wgo_InteresttoReflectNewDebtStructureMember_23BBB49E56E4AA9406BDF06802CF58D1" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:to="loc_wgo_InteresttoReflectNewDebtStructureMember_23BBB49E56E4AA9406BDF06802CF58D1" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TaxesRelatedtotheAdjustmentstoTheProFormaMember" xlink:label="loc_wgo_TaxesRelatedtotheAdjustmentstoTheProFormaMember_910CCF6C19046F99C6BAF06802CF98A3" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonrecurringAdjustmentDomain_0C6A6A73A42AC0474C68F06802CE7663" xlink:to="loc_wgo_TaxesRelatedtotheAdjustmentstoTheProFormaMember_910CCF6C19046F99C6BAF06802CF98A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_4FE6B0E222D9A4E3D0BDF06802CF69AB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_4FE6B0E222D9A4E3D0BDF06802CF69AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_CBD2988475305AAC10E0F06802D0F968" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_CBD2988475305AAC10E0F06802D0F968" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_C0C7F7175CCCAD1D6C25F06802D0B56E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_C0C7F7175CCCAD1D6C25F06802D0B56E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_C43C064753270F49D7D1F06802D0369F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_C43C064753270F49D7D1F06802D0369F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_9CE49EAF1CF9161A8B96F06802D03DC6" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_9CE49EAF1CF9161A8B96F06802D03DC6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_7AB2282FC1652BDCA74BF06802D0070D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_7AB2282FC1652BDCA74BF06802D0070D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_61AF66AADE5495687C47F06802D1EE07" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_ProfitLoss_61AF66AADE5495687C47F06802D1EE07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed" xlink:label="loc_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed_088529D3B576FAE501CCF06802D1C9DE" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_EB6D1A3BB939B57DEBF8F06802CF3086" xlink:to="loc_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed_088529D3B576FAE501CCF06802D1C9DE" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessCombinationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessSegments" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessSegmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_21EB5E048077C93EBD0EF89B38C0FEE0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_21EB5E048077C93EBD0EF89B38C0FEE0" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_DC3F1113C40D2FE7FFE4F89B38C0B3E8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_21EB5E048077C93EBD0EF89B38C0FEE0" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_DC3F1113C40D2FE7FFE4F89B38C0B3E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_DC3F1113C40D2FE7FFE4F89B38C0B3E8" xlink:to="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_DC3F1113C40D2FE7FFE4F89B38C0B3E8" xlink:to="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TowableMember" xlink:label="loc_wgo_TowableMember_86840226E258D3328A86F89B38C1E480" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D" xlink:to="loc_wgo_TowableMember_86840226E258D3328A86F89B38C1E480" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_MotorhomeMember" xlink:label="loc_wgo_MotorhomeMember_4AA1F8879FF520970224F89B38C10940" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D" xlink:to="loc_wgo_MotorhomeMember_4AA1F8879FF520970224F89B38C10940" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_CorporateAllOtherMember" xlink:label="loc_wgo_CorporateAllOtherMember_887CEC64BE1F50823B28F89B38C18ED6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_F6CEE4FC0897F3B4DAC6F89B38C07D5D" xlink:to="loc_wgo_CorporateAllOtherMember_887CEC64BE1F50823B28F89B38C18ED6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_93959B3891E89A49AF0DF89B38C2F07B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_NumberOfReportableSegments_93959B3891E89A49AF0DF89B38C2F07B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_8F6D580706C992B6EB04F89B38C2E047" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_Revenues_8F6D580706C992B6EB04F89B38C2E047" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_395670D6DCD36C1DD575F89B38C21B23" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_395670D6DCD36C1DD575F89B38C21B23" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_14C5FD696113AD28DF40F89B38C2A6A2" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_Assets_14C5FD696113AD28DF40F89B38C2A6A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_544A86CC33898617CA07F89B38C20891" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_NetIncomeLoss_544A86CC33898617CA07F89B38C20891" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_95A75C30FCCF72340C21F89B38C2F8C8" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_InterestExpense_95A75C30FCCF72340C21F89B38C2F8C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_D8EBF3BC2EEFB102FA0AF89B38C33E18" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_D8EBF3BC2EEFB102FA0AF89B38C33E18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_4866A5DD53BA83D8D8F6F89B38C3CB9C" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_Depreciation_4866A5DD53BA83D8D8F6F89B38C3CB9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_4C7EC60D18C9117BA23BF89B38C3EFE5" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_4C7EC60D18C9117BA23BF89B38C3EFE5" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_EBITDA" xlink:label="loc_wgo_EBITDA_65602CF966C5D5ACFBD9F89B38C3D057" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_wgo_EBITDA_65602CF966C5D5ACFBD9F89B38C3D057" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_Postretirementhealthcarebenefitincome" xlink:label="loc_wgo_Postretirementhealthcarebenefitincome_8637533D53EC40E59616F89B38C3491B" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_wgo_Postretirementhealthcarebenefitincome_8637533D53EC40E59616F89B38C3491B" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_Restructuringchargesexcludingdepreciation" xlink:label="loc_wgo_Restructuringchargesexcludingdepreciation_0779059F8B8DD8A13116F8A5BCC98DEA" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_wgo_Restructuringchargesexcludingdepreciation_0779059F8B8DD8A13116F8A5BCC98DEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_C9B68BFAEADDEB7DCC02F89B38C4A5E8" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_C9B68BFAEADDEB7DCC02F89B38C4A5E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_213E8F86F5CBD203B8A0F89B38C4C4AC" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_213E8F86F5CBD203B8A0F89B38C4C4AC" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_AdjustedEBITDA" xlink:label="loc_wgo_AdjustedEBITDA_C33F229191D9A0F20A45F89B38C4A888" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_15ED49B26DE53A149446F89B38C179EC" xlink:to="loc_wgo_AdjustedEBITDA_C33F229191D9A0F20A45F89B38C4A888" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessSegmentsRevenuesByGeographicAreaDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_6781D07AC41A1E754732F06802B8F2E2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7E73B2662E3C736DF742F06802B735FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_6781D07AC41A1E754732F06802B8F2E2" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7E73B2662E3C736DF742F06802B735FC" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_1C0CFBC7872AA7D8A8C1F06802B763B6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7E73B2662E3C736DF742F06802B735FC" xlink:to="loc_srt_StatementGeographicalAxis_1C0CFBC7872AA7D8A8C1F06802B763B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_9CECAF6638481899A8CAF06802B79CA4_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_1C0CFBC7872AA7D8A8C1F06802B763B6" xlink:to="loc_srt_SegmentGeographicalDomain_9CECAF6638481899A8CAF06802B79CA4_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_9CECAF6638481899A8CAF06802B79CA4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_1C0CFBC7872AA7D8A8C1F06802B763B6" xlink:to="loc_srt_SegmentGeographicalDomain_9CECAF6638481899A8CAF06802B79CA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_067D902F3C71EC734254F06802B7593E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_9CECAF6638481899A8CAF06802B79CA4" xlink:to="loc_country_US_067D902F3C71EC734254F06802B7593E" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_InternationalMember" xlink:label="loc_wgo_InternationalMember_E5F573273F59CCBAF84DF06802B8C4AE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_9CECAF6638481899A8CAF06802B79CA4" xlink:to="loc_wgo_InternationalMember_E5F573273F59CCBAF84DF06802B8C4AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_8A4A7E06FB4434A4DD6CF06802B86ED6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_6781D07AC41A1E754732F06802B8F2E2" xlink:to="loc_us-gaap_Revenues_8A4A7E06FB4434A4DD6CF06802B86ED6" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/BusinessSegmentsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ComprehensiveIncome" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ComprehensiveIncomeChangesInAociByComponentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_7D1A0B88C4B231464E02F4AD0C9551FD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_195A7EE6099267AC56F1F4AD0C93D5FD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_7D1A0B88C4B231464E02F4AD0C9551FD" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_195A7EE6099267AC56F1F4AD0C93D5FD" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_F55A030F36763ABD632FF4AD0C93C6B1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_195A7EE6099267AC56F1F4AD0C93D5FD" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_F55A030F36763ABD632FF4AD0C93C6B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_F55A030F36763ABD632FF4AD0C93C6B1" xlink:to="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_F55A030F36763ABD632FF4AD0C93C6B1" xlink:to="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_BAB8404DAD7D959BB79DF4AD0C9491F0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_BAB8404DAD7D959BB79DF4AD0C9491F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_BBFCBA5A587F7A51445BF4AD0C945979" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_BBFCBA5A587F7A51445BF4AD0C945979" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_841A2C229CE1733F1ED6F4AD0C94E73D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_03E44186701360DF139CF4AD0C94AE71" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_841A2C229CE1733F1ED6F4AD0C94E73D" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:label="loc_wgo_AccumulatedOtherComprehensiveIncomeLossRollForward_A7145D605023CA555CC5F4AD0C95F618" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_7D1A0B88C4B231464E02F4AD0C9551FD" xlink:to="loc_wgo_AccumulatedOtherComprehensiveIncomeLossRollForward_A7145D605023CA555CC5F4AD0C95F618" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F967451F729A42A54A99F4AD0C956FC3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_AccumulatedOtherComprehensiveIncomeLossRollForward_A7145D605023CA555CC5F4AD0C95F618" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F967451F729A42A54A99F4AD0C956FC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_6E3D9420268525463C95F4AD0C952154" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_AccumulatedOtherComprehensiveIncomeLossRollForward_A7145D605023CA555CC5F4AD0C95F618" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_6E3D9420268525463C95F4AD0C952154" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_8F67D823F90555CEDE1DF4C3D921C611" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_6E3D9420268525463C95F4AD0C952154" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_8F67D823F90555CEDE1DF4C3D921C611" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_514BFE0A3EBF63F06DE5F4AD0C966A6F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_6E3D9420268525463C95F4AD0C952154" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_514BFE0A3EBF63F06DE5F4AD0C966A6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_D1D060A1397887D3B9FCF4AD0C96C95F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_6E3D9420268525463C95F4AD0C952154" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_D1D060A1397887D3B9FCF4AD0C96C95F" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ASU201802Adoption" xlink:label="loc_wgo_ASU201802Adoption_3DC7697C4D3E94BA3432F4AD0C9652CD" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_6E3D9420268525463C95F4AD0C952154" xlink:to="loc_wgo_ASU201802Adoption_3DC7697C4D3E94BA3432F4AD0C9652CD" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ComprehensiveIncomeReclassificationOutOfAociDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems" xlink:label="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_CE96B00B2CC383EEF6FEF89B377C845B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_09866BA1B9F084051242F89B3779E157" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_CE96B00B2CC383EEF6FEF89B377C845B" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_09866BA1B9F084051242F89B3779E157" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_0B380BF1969EA6C252A9F89B377A3F0C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_09866BA1B9F084051242F89B3779E157" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_0B380BF1969EA6C252A9F89B377A3F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_C3BCC07F70F5DF9A43CCF89B377A05C5_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0B380BF1969EA6C252A9F89B377A3F0C" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_C3BCC07F70F5DF9A43CCF89B377A05C5_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_C3BCC07F70F5DF9A43CCF89B377A05C5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0B380BF1969EA6C252A9F89B377A3F0C" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_C3BCC07F70F5DF9A43CCF89B377A05C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenseMember" xlink:label="loc_us-gaap_OperatingExpenseMember_60D578745B1B50D6C78DF89B377AABF1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_C3BCC07F70F5DF9A43CCF89B377A05C5" xlink:to="loc_us-gaap_OperatingExpenseMember_60D578745B1B50D6C78DF89B377AABF1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_4F32044057D09CDB0BFCF89B377AA737" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_09866BA1B9F084051242F89B3779E157" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_4F32044057D09CDB0BFCF89B377AA737" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F64AAECF76D2BD67FC79F89B377AFFFF_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4F32044057D09CDB0BFCF89B377AA737" xlink:to="loc_us-gaap_EquityComponentDomain_F64AAECF76D2BD67FC79F89B377AFFFF_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F64AAECF76D2BD67FC79F89B377AFFFF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4F32044057D09CDB0BFCF89B377AA737" xlink:to="loc_us-gaap_EquityComponentDomain_F64AAECF76D2BD67FC79F89B377AFFFF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember_9DB43AF8A4735AA6AEA5F89B377B8453" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F64AAECF76D2BD67FC79F89B377AFFFF" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember_9DB43AF8A4735AA6AEA5F89B377B8453" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember_71B602D558F20976C6F5F89B377B39EB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F64AAECF76D2BD67FC79F89B377AFFFF" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember_71B602D558F20976C6F5F89B377B39EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_81BE6D030973CD7617FEF89B377B862F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_09866BA1B9F084051242F89B3779E157" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_81BE6D030973CD7617FEF89B377B862F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_C79EF34B6077783F94F1F89B377B5154_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_81BE6D030973CD7617FEF89B377B862F" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_C79EF34B6077783F94F1F89B377B5154_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_C79EF34B6077783F94F1F89B377B5154" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_81BE6D030973CD7617FEF89B377B862F" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_C79EF34B6077783F94F1F89B377B5154" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_2F6A376359B47158292AF89B377C25A2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_C79EF34B6077783F94F1F89B377B5154" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_2F6A376359B47158292AF89B377C25A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax_677F0CAC7B2BB8E94270F89B377CA96A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_CE96B00B2CC383EEF6FEF89B377C845B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax_677F0CAC7B2BB8E94270F89B377CA96A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_69509793870651F9CD11F89B377D0325" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_CE96B00B2CC383EEF6FEF89B377C845B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_69509793870651F9CD11F89B377D0325" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_C040A07204AD82DA7251F89B377D9150" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_CE96B00B2CC383EEF6FEF89B377C845B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_C040A07204AD82DA7251F89B377D9150" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ComprehensiveIncomeTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_A84A3DAEAC11B7A75F52F06803584BCC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_StatementTable_A84A3DAEAC11B7A75F52F06803584BCC" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_21250C7DD1FD3CF64A08F0680359BA65" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_A84A3DAEAC11B7A75F52F06803584BCC" xlink:to="loc_us-gaap_StatementScenarioAxis_21250C7DD1FD3CF64A08F0680359BA65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_E1D270D1F69592040E19F068035930FC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_21250C7DD1FD3CF64A08F0680359BA65" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_E1D270D1F69592040E19F068035930FC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_E1D270D1F69592040E19F068035930FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_21250C7DD1FD3CF64A08F0680359BA65" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_E1D270D1F69592040E19F068035930FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_B114C4EAE329B92FABDEF068035A47B1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_AssetsAbstract_B114C4EAE329B92FABDEF068035A47B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_E1A485095C1245C4650DF068035AF4DC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_AssetsCurrentAbstract_E1A485095C1245C4650DF068035AF4DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4B2F95B3A3EF4E80A65AF068035AC00C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_E1A485095C1245C4650DF068035AF4DC" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4B2F95B3A3EF4E80A65AF068035AC00C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_025FB4576075A5B31E1AF068035A8CBC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_E1A485095C1245C4650DF068035AF4DC" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_025FB4576075A5B31E1AF068035A8CBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_52956CE50C6B871BDA37F068035B7AA7" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_E1A485095C1245C4650DF068035AF4DC" xlink:to="loc_us-gaap_InventoryNet_52956CE50C6B871BDA37F068035B7AA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_A8F87F30C9572D12D4C4F068035B74CB" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_E1A485095C1245C4650DF068035AF4DC" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_A8F87F30C9572D12D4C4F068035B74CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_3D1DDC41890418DBF77FF068035B3191" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_AssetsCurrent_3D1DDC41890418DBF77FF068035B3191" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_F347EFFCCDA45C25C471F068035B9113" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_F347EFFCCDA45C25C471F068035B9113" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_9EF6A67D760A4D104A13F068035BCBE3" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_Goodwill_9EF6A67D760A4D104A13F068035BCBE3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_DED87AE0490F8101447DF068035BA69D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_DED87AE0490F8101447DF068035BA69D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LifeInsuranceCorporateOrBankOwnedAmount" xlink:label="loc_us-gaap_LifeInsuranceCorporateOrBankOwnedAmount_AD3726AF3B0DF4A9B250F068035C3F64" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LifeInsuranceCorporateOrBankOwnedAmount_AD3726AF3B0DF4A9B250F068035C3F64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_C09BFBEAA430D6FA66C3F068035CDA93" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_C09BFBEAA430D6FA66C3F068035CDA93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_32BAC830FB0AD15FF3F4F068035CBCC2" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_Assets_32BAC830FB0AD15FF3F4F068035CBCC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_F856530594D2E3FCA0DBF068035C814E" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_F856530594D2E3FCA0DBF068035C814E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_BF9630AADBB8A24647E0F068035C95CB" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_BF9630AADBB8A24647E0F068035C95CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_9ACD98B576C0A6A792E2F068035C1F8C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_BF9630AADBB8A24647E0F068035C95CB" xlink:to="loc_us-gaap_AccountsPayableCurrent_9ACD98B576C0A6A792E2F068035C1F8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_57691BA7CF37E5E6A6EBF068035D682B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_BF9630AADBB8A24647E0F068035C95CB" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_57691BA7CF37E5E6A6EBF068035D682B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedLiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_BF9630AADBB8A24647E0F068035C95CB" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_7DE1BCC7CE645E3B8720F068035DBB54" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_7DE1BCC7CE645E3B8720F068035DBB54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_10060E27329B0E549ED1F068035D59BF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_10060E27329B0E549ED1F068035D59BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SelfInsuranceReserveCurrent" xlink:label="loc_us-gaap_SelfInsuranceReserveCurrent_6B2AD67087393DD29CD2F068035D2D2B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:to="loc_us-gaap_SelfInsuranceReserveCurrent_6B2AD67087393DD29CD2F068035D2D2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedMarketingCostsCurrent" xlink:label="loc_us-gaap_AccruedMarketingCostsCurrent_2D3EBEDBE55ED006AED1F068035ECC30" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:to="loc_us-gaap_AccruedMarketingCostsCurrent_2D3EBEDBE55ED006AED1F068035ECC30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_8C7887181F78AADB23BFF068035E0671" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:to="loc_us-gaap_InterestPayableCurrent_8C7887181F78AADB23BFF068035E0671" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_46B44C2C8F122BC394CFF068035EC18A" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_D1EDFF4363229E9D2A46F068035D0463" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_46B44C2C8F122BC394CFF068035EC18A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_E94D7D6D705A07720849F068035E5C1E" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_BF9630AADBB8A24647E0F068035C95CB" xlink:to="loc_us-gaap_LongTermDebtCurrent_E94D7D6D705A07720849F068035E5C1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_9EA10EB41E5DA53FFEC6F068035EC2AC" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LiabilitiesCurrent_9EA10EB41E5DA53FFEC6F068035EC2AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_05B3187E25AE5B311A1FF068035F1063" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_05B3187E25AE5B311A1FF068035F1063" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_0BEA767163855599C0FBF0680359A311" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:to="loc_us-gaap_DeferredTaxLiabilities_0BEA767163855599C0FBF0680359A311" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilityForUncertainTaxPositionsNoncurrent" xlink:label="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_F21AB86924CEFA0D9E0BF068035FEAA1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:to="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_F21AB86924CEFA0D9E0BF068035FEAA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent_D3BE2A98E6B4A1DAF512F068035F3232" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:to="loc_us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent_D3BE2A98E6B4A1DAF512F068035F3232" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_0769F4E223F77D30E5B7F068035F77A9" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_EE5C8A82BDFA9A844DE9F068035EF6F6" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_0769F4E223F77D30E5B7F068035F77A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_426706A04450569B5DD4F068035FACED" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_426706A04450569B5DD4F068035FACED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockValueOutstanding" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_4E9205BC712F224E8756F068036059DA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_4E9205BC712F224E8756F068036059DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_E07A1E177297C95CE673F06803608F42" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:to="loc_us-gaap_CommonStockValueOutstanding_E07A1E177297C95CE673F06803608F42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_1E1A5408AF340029814BF06803609086" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:to="loc_us-gaap_AdditionalPaidInCapital_1E1A5408AF340029814BF06803609086" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1772750932E8F6B086C0F068036028FC" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1772750932E8F6B086C0F068036028FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_D7D0C2BCE676177EC157F0680361ED13" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_D7D0C2BCE676177EC157F0680361ED13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_115E0BF0354AF6DF590FF06803618FDB" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityAbstract_0A544FEF069034145A74F06803608425" xlink:to="loc_us-gaap_TreasuryStockValue_115E0BF0354AF6DF590FF06803618FDB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_6AA33A817EA4A1D7D2CAF06803616C9A" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_StockholdersEquity_6AA33A817EA4A1D7D2CAF06803616C9A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_BFC486A697CFE873EB91F06803613F9B" xlink:type="locator" />
    <link:definitionArc order="17" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_7DC99147505121A932C8F06803590840" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_BFC486A697CFE873EB91F06803613F9B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedBalanceSheetsConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_4FEB45165C6836468B34F44285A093EF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_StatementTable_4FEB45165C6836468B34F44285A093EF" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_E59F80A9B6057CA8D371F44285A04349" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_4FEB45165C6836468B34F44285A093EF" xlink:to="loc_us-gaap_StatementScenarioAxis_E59F80A9B6057CA8D371F44285A04349" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1A64D854B2CC9C390AFBF44285A17AB2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_E59F80A9B6057CA8D371F44285A04349" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1A64D854B2CC9C390AFBF44285A17AB2_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1A64D854B2CC9C390AFBF44285A17AB2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_E59F80A9B6057CA8D371F44285A04349" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1A64D854B2CC9C390AFBF44285A17AB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0034DF0A83B35914FEA8F44285A16FFB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0034DF0A83B35914FEA8F44285A16FFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_B305C036F4B35128B0D7F44285A1C65B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0034DF0A83B35914FEA8F44285A16FFB" xlink:to="loc_us-gaap_NetIncomeLoss_B305C036F4B35128B0D7F44285A1C65B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0034DF0A83B35914FEA8F44285A16FFB" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_0A4ACB24249E14DF25D4F44285A27153" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_Depreciation_0A4ACB24249E14DF25D4F44285A27153" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_0616D8FB863231C3DD5EF44285A24648" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_0616D8FB863231C3DD5EF44285A24648" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_E47CEE8CBFAE11B92ECCF44285A324E6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_E47CEE8CBFAE11B92ECCF44285A324E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryLIFOReservePeriodCharge" xlink:label="loc_us-gaap_InventoryLIFOReservePeriodCharge_5AECF4A58E1A17F184C2F44285A35960" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_InventoryLIFOReservePeriodCharge_5AECF4A58E1A17F184C2F44285A35960" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_8F0EDBEE76FFA3C8477DF44285A398E9" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_ShareBasedCompensation_8F0EDBEE76FFA3C8477DF44285A398E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DFD8A191714805EE77D3F44285A36CF0" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DFD8A191714805EE77D3F44285A36CF0" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_IncreaseDecreaseInDeferredCompensationAndPostretirementObligationExpenses" xlink:label="loc_wgo_IncreaseDecreaseInDeferredCompensationAndPostretirementObligationExpenses_57176084535A13F0052EF44285A3B25F" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_wgo_IncreaseDecreaseInDeferredCompensationAndPostretirementObligationExpenses_57176084535A13F0052EF44285A3B25F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_E909F664F52B42F0A399F44285A458B0" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E006A33E90964CF7DAC1F44285A2EA21" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_E909F664F52B42F0A399F44285A458B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_0034DF0A83B35914FEA8F44285A16FFB" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_B0CF5BC4855561234BEFF44285A475B3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_B0CF5BC4855561234BEFF44285A475B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_0C054554964359A4383CF44285A44CF0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_0C054554964359A4383CF44285A44CF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_4B95061100917E2159C4F44285A4B73D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_4B95061100917E2159C4F44285A4B73D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_597522A54506CC9DC68AF44285A54E65" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_597522A54506CC9DC68AF44285A54E65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_7A3A1F77FA6EADFBA1ACF44285A54EE8" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_7A3A1F77FA6EADFBA1ACF44285A54EE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_E4F7868A028D6DB8C802F44285A5C181" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_E4F7868A028D6DB8C802F44285A5C181" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_32A99F333A28691BA718F44285A583EF" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract_F8DC85830835C74CE855F44285A48606" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_32A99F333A28691BA718F44285A583EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_139CB96B1420D1EFA084F44285A5831B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_139CB96B1420D1EFA084F44285A5831B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_1E6D4999BA68563A6566F44285A6ED8D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_1E6D4999BA68563A6566F44285A6ED8D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_C2415AC27D2BE62BF893F44285A61A88" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_C2415AC27D2BE62BF893F44285A61A88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_17CB9F45AF5C1C67D113F44285A626D6" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_17CB9F45AF5C1C67D113F44285A626D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0AB7D5EEC4A2AE14CA29F44285A69203" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_EFC801BD243F0B1AAB3BF44285A58E90" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0AB7D5EEC4A2AE14CA29F44285A69203" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_E884CB8BEFFAA3C4BCAEF44285A70152" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_E884CB8BEFFAA3C4BCAEF44285A70152" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_4B8B3B038AAE90872D39F44285A78FD4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_4B8B3B038AAE90872D39F44285A78FD4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_FC02485F9DC38D586DC5F44285A7817D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_FC02485F9DC38D586DC5F44285A7817D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_F9A15004A96C66C5A398F44285A7C56A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_F9A15004A96C66C5A398F44285A7C56A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_080001E232D48E5D95DAF44285A8E16E" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_080001E232D48E5D95DAF44285A8E16E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_5C2E10899846CFF9C445F44285A816E7" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_5C2E10899846CFF9C445F44285A816E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_54A82150069815F4F7EFF44285A86371" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0C04DAC6C25AD3EBB569F44285A79D9F" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_54A82150069815F4F7EFF44285A86371" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_980085818AF71B87E351F44285A8882B" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_980085818AF71B87E351F44285A8882B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_DCDA7F2F361FB930F55FF44285A8D113" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_DCDA7F2F361FB930F55FF44285A8D113" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_F6B120C717C8FCB27C96F44285A84EBB" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_F6B120C717C8FCB27C96F44285A84EBB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_943637DAD84B397DDDAEF44285A94A2B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_F6B120C717C8FCB27C96F44285A84EBB" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_943637DAD84B397DDDAEF44285A94A2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="loc_us-gaap_InterestPaidNet_6C175915ECF0407C763BF44285A9DC68" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_F6B120C717C8FCB27C96F44285A84EBB" xlink:to="loc_us-gaap_InterestPaidNet_6C175915ECF0407C763BF44285A9DC68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_69A9B1BA1868325E4F27F44285A923DA" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_A2930430B440FE75C04EF44285A11403" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_69A9B1BA1868325E4F27F44285A923DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssued1" xlink:label="loc_us-gaap_StockIssued1_E5F06E47D0767C835B2BF44285A9B8BF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_69A9B1BA1868325E4F27F44285A923DA" xlink:to="loc_us-gaap_StockIssued1_E5F06E47D0767C835B2BF44285A9B8BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_9ED13E86CD14D72AB6BCF44285AAC1AA" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_69A9B1BA1868325E4F27F44285A923DA" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_9ED13E86CD14D72AB6BCF44285AAC1AA" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_BEEAC41DCBCC75A693A0F8829D3E0362" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StatementTable_BEEAC41DCBCC75A693A0F8829D3E0362" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_7361DB545AC390FDC2E7F8829D3E66D0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_BEEAC41DCBCC75A693A0F8829D3E0362" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_7361DB545AC390FDC2E7F8829D3E66D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_7361DB545AC390FDC2E7F8829D3E66D0" xlink:to="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_7361DB545AC390FDC2E7F8829D3E66D0" xlink:to="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_14EF50C878FC0D73EA6FF8829D3EB19C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:to="loc_us-gaap_CommonStockMember_14EF50C878FC0D73EA6FF8829D3EB19C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_9019E49810C373AFBC3CF8829D3F0CAD" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_9019E49810C373AFBC3CF8829D3F0CAD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_70C7E6510584CBC565B8F8829D3F2FBC" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:to="loc_us-gaap_RetainedEarningsMember_70C7E6510584CBC565B8F8829D3F2FBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_DFDA083D258AD8E98C11F8829D3FE9AF" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_DFDA083D258AD8E98C11F8829D3FE9AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_B5077B7C334486879CE8F8829D3F69C4" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F5FE6924CFBC4C5915E2F8829D3E4274" xlink:to="loc_us-gaap_TreasuryStockMember_B5077B7C334486879CE8F8829D3F69C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_666DDF96D2C3FAE40648F8829D3F6D13" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_666DDF96D2C3FAE40648F8829D3F6D13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_09C06885F0D737085E97F8829D40B248" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_09C06885F0D737085E97F8829D40B248" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_StockbasedCompensationRequisiteServicePeriodRecognition" xlink:label="loc_wgo_StockbasedCompensationRequisiteServicePeriodRecognition_20EBF974C543458AAE7BF8829D400527" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_wgo_StockbasedCompensationRequisiteServicePeriodRecognition_20EBF974C543458AAE7BF8829D400527" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_StockbasedCompensationRequisiteServicePeriodRecognitionShares" xlink:label="loc_wgo_StockbasedCompensationRequisiteServicePeriodRecognitionShares_762919F4236FC07420E2F8829D40ED3A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_wgo_StockbasedCompensationRequisiteServicePeriodRecognitionShares_762919F4236FC07420E2F8829D40ED3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_754624D13A6CA9F71A8DF8829D40BC16" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_754624D13A6CA9F71A8DF8829D40BC16" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_C78EF0611DF9A19B661EF8829D406463" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_C78EF0611DF9A19B661EF8829D406463" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_B288EB45CB63CF9D6590F8829D41AA27" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_B288EB45CB63CF9D6590F8829D41AA27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_5B941A2BA96A46991E0FF8829D416317" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_5B941A2BA96A46991E0FF8829D416317" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_AdjustmentstoAdditionalPaidinCapitalCreationUtilizationofAPICPoolDuetoStockAward" xlink:label="loc_wgo_AdjustmentstoAdditionalPaidinCapitalCreationUtilizationofAPICPoolDuetoStockAward_6BC4F642F58BB431BD8EF8829D4123A6" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_wgo_AdjustmentstoAdditionalPaidinCapitalCreationUtilizationofAPICPoolDuetoStockAward_6BC4F642F58BB431BD8EF8829D4123A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodValue" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_7D431FB8E5C480C09876F8829D418A3E" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_7D431FB8E5C480C09876F8829D418A3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_0F92A96DF729C155A3F3F8829D410D09" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_0F92A96DF729C155A3F3F8829D410D09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_us-gaap_DividendsCommonStockCash_EE5CB778EE6FBFC305EFF8829D4146E8" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_DividendsCommonStockCash_EE5CB778EE6FBFC305EFF8829D4146E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_7523FADDE1B9E34573E0F8829D41F768" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_7523FADDE1B9E34573E0F8829D41F768" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DefinedBenefitPlanPlanAmendmentsNetOfTax" xlink:label="loc_wgo_DefinedBenefitPlanPlanAmendmentsNetOfTax_D0DBE3C2EA80C81CF07DF8829D42B7BA" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_wgo_DefinedBenefitPlanPlanAmendmentsNetOfTax_D0DBE3C2EA80C81CF07DF8829D42B7BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_C798B3EF3A70C3F543B4F8829D42DE02" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_C798B3EF3A70C3F543B4F8829D42DE02" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ASU201802Adoption" xlink:label="loc_wgo_ASU201802Adoption_750157A7BCBA70CFF211F8829D42D921" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_wgo_ASU201802Adoption_750157A7BCBA70CFF211F8829D42D921" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_0FF38E61A02AAF183CEAF8829D424D5B" xlink:type="locator" />
    <link:definitionArc order="17" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_505391F15EE6CE1D44FEF8829D3F46E8" xlink:to="loc_us-gaap_NetIncomeLoss_0FF38E61A02AAF183CEAF8829D424D5B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParenthetical" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_086DA21CD2948E973F88F8825C86175C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_StatementTable_086DA21CD2948E973F88F8825C86175C" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_7A04452B9C02F4DD7E46F8825C87181A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_086DA21CD2948E973F88F8825C86175C" xlink:to="loc_us-gaap_StatementScenarioAxis_7A04452B9C02F4DD7E46F8825C87181A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D0327ADCECC371EF1ECDF8825C88410F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_7A04452B9C02F4DD7E46F8825C87181A" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D0327ADCECC371EF1ECDF8825C88410F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D0327ADCECC371EF1ECDF8825C88410F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_7A04452B9C02F4DD7E46F8825C87181A" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D0327ADCECC371EF1ECDF8825C88410F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_363165B81D5127344EBAF8825C8D6126" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_Revenues_363165B81D5127344EBAF8825C8D6126" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_6595FF1129F94A176BE0F8825C8F97D9" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_6595FF1129F94A176BE0F8825C8F97D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_C53D8A2C807377998756F8825C903FE0" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_GrossProfit_C53D8A2C807377998756F8825C903FE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_3223AFA5AE4F4393D5CBF8825C90CF50" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_OperatingExpensesAbstract_3223AFA5AE4F4393D5CBF8825C90CF50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_7DE19F07BF1A6E97EABAF8825C900068" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3223AFA5AE4F4393D5CBF8825C90CF50" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_7DE19F07BF1A6E97EABAF8825C900068" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_Postretirementhealthcarebenefitincome" xlink:label="loc_wgo_Postretirementhealthcarebenefitincome_D2F860ADD4591542400FF8825C901F0C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3223AFA5AE4F4393D5CBF8825C90CF50" xlink:to="loc_wgo_Postretirementhealthcarebenefitincome_D2F860ADD4591542400FF8825C901F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_69411BE94A99B5C42C2DF8825C91C065" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3223AFA5AE4F4393D5CBF8825C90CF50" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_69411BE94A99B5C42C2DF8825C91C065" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_5F17C4BD8A0488DE1F86F8825C91CC66" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_OperatingExpenses_5F17C4BD8A0488DE1F86F8825C91CC66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_60B440EA58F148810EC3F8825C911AF9" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_OperatingIncomeLoss_60B440EA58F148810EC3F8825C911AF9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_ADEF383EDF5ACA4F8031F8825C91A760" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_InterestExpense_ADEF383EDF5ACA4F8031F8825C91A760" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_92801A367A959820DAA2F8825C911ACD" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_92801A367A959820DAA2F8825C911ACD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_A53561B28A1EDAD2A8EAF8825C91FC63" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_A53561B28A1EDAD2A8EAF8825C91FC63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_83DC36CACA03C70EBC9DF8825C92F5E8" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_83DC36CACA03C70EBC9DF8825C92F5E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_32FC9CE2877D9378DDACF8825C92088C" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_NetIncomeLoss_32FC9CE2877D9378DDACF8825C92088C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_A7DC132F752B28382B33F8825C921160" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_EarningsPerShareAbstract_A7DC132F752B28382B33F8825C921160" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_9C846BA710DD8734F686F8825C92D931" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_A7DC132F752B28382B33F8825C921160" xlink:to="loc_us-gaap_EarningsPerShareBasic_9C846BA710DD8734F686F8825C92D931" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_0A4A3A8C3E55F493E1B5F8825C92F102" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_A7DC132F752B28382B33F8825C921160" xlink:to="loc_us-gaap_EarningsPerShareDiluted_0A4A3A8C3E55F493E1B5F8825C92F102" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_F74719CB2A37CEA9956CF8825C9225B0" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_F74719CB2A37CEA9956CF8825C9225B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_BEB9BC4ADFDEFA7AE920F8825C9329E7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_F74719CB2A37CEA9956CF8825C9225B0" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_BEB9BC4ADFDEFA7AE920F8825C9329E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_3D46B54E350E6400DACDF8825C936AEF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_F74719CB2A37CEA9956CF8825C9225B0" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_3D46B54E350E6400DACDF8825C936AEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax_CAA9FA3F29A97565F45FF8825C931142" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax_CAA9FA3F29A97565F45FF8825C931142" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_F9B5E8656D2364B878C4F8825C945AEB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_F9B5E8656D2364B878C4F8825C945AEB" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansDecreaseIncreaseinActuarialLossNetofTax" xlink:label="loc_wgo_OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansDecreaseIncreaseinActuarialLossNetofTax_24F07192CFE59BAAFD00F8825C9426BC" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:to="loc_wgo_OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansDecreaseIncreaseinActuarialLossNetofTax_24F07192CFE59BAAFD00F8825C9426BC" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentNetofTax" xlink:label="loc_wgo_OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentNetofTax_F180F5229E40A5361200F8825C94951C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:to="loc_wgo_OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentNetofTax_F180F5229E40A5361200F8825C94951C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_870061512D9463EA1E3BF8825C94AE6B" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract_0A910D7A0EF5346EDAC3F8825C93DECC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_870061512D9463EA1E3BF8825C94AE6B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_A7C44FAC15F0482A4081F8825C948C4C" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_A7C44FAC15F0482A4081F8825C948C4C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_D1975D1787BBBCFFFC30F8825C94D8E9" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_F3A212754DB381503E6EF8825C8846FF" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_D1975D1787BBBCFFFC30F8825C94D8E9" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitments" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsLeaseCommitmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionContingentConsiderationLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionContingentConsiderationLineItems_5086AE0B2B435D3F8F49CB9320608662" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_45FCA373206BC42DA28ECB93205D053E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionContingentConsiderationLineItems_5086AE0B2B435D3F8F49CB9320608662" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_45FCA373206BC42DA28ECB93205D053E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_329D790E79D03EAF8145CB93205D7A31" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_45FCA373206BC42DA28ECB93205D053E" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_329D790E79D03EAF8145CB93205D7A31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_8A687F9C95D4DABA7D27CB93205DCF84_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_329D790E79D03EAF8145CB93205D7A31" xlink:to="loc_us-gaap_RelatedPartyDomain_8A687F9C95D4DABA7D27CB93205DCF84_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_8A687F9C95D4DABA7D27CB93205DCF84" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_329D790E79D03EAF8145CB93205D7A31" xlink:to="loc_us-gaap_RelatedPartyDomain_8A687F9C95D4DABA7D27CB93205DCF84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_AffiliatedEntityMember" xlink:label="loc_srt_AffiliatedEntityMember_144D1ECA13D0D14BCCCCCB93205D9FB6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_8A687F9C95D4DABA7D27CB93205DCF84" xlink:to="loc_srt_AffiliatedEntityMember_144D1ECA13D0D14BCCCCCB93205D9FB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_CounterpartyNameAxis" xlink:label="loc_srt_CounterpartyNameAxis_8429BDE96B5E2634F0D2CB93205EEFB9" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_45FCA373206BC42DA28ECB93205D053E" xlink:to="loc_srt_CounterpartyNameAxis_8429BDE96B5E2634F0D2CB93205EEFB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2AF9339FEA7D468327BFCB93205E78D7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_8429BDE96B5E2634F0D2CB93205EEFB9" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2AF9339FEA7D468327BFCB93205E78D7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2AF9339FEA7D468327BFCB93205E78D7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_8429BDE96B5E2634F0D2CB93205EEFB9" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2AF9339FEA7D468327BFCB93205E78D7" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_UnaffiliatedEntitiesMember" xlink:label="loc_wgo_UnaffiliatedEntitiesMember_EE1FB95AA04F6C1DC191CB93205E8E9D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2AF9339FEA7D468327BFCB93205E78D7" xlink:to="loc_wgo_UnaffiliatedEntitiesMember_EE1FB95AA04F6C1DC191CB93205E8E9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaap_LeaseAndRentalExpense_175491B00D1E9182EDF9CB9320617C2B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionContingentConsiderationLineItems_5086AE0B2B435D3F8F49CB9320608662" xlink:to="loc_us-gaap_LeaseAndRentalExpense_175491B00D1E9182EDF9CB9320617C2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionContingentConsiderationLineItems_5086AE0B2B435D3F8F49CB9320608662" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_836C7F9660AF5AC17487CB932061EA20" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_836C7F9660AF5AC17487CB932061EA20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_2DF04A0D41BCE9178CF5CB932061F989" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_2DF04A0D41BCE9178CF5CB932061F989" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_F0E7C568AC4D57B4B03ECB9320618BB2" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_F0E7C568AC4D57B4B03ECB9320618BB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_95669B2F4C4D704E2FE6CB932062054D" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_95669B2F4C4D704E2FE6CB932062054D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_1C801E985F95E7E7870DCB932062B08D" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_1C801E985F95E7E7870DCB932062B08D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_FE64D86E5B4E9E90B4B8CB9320628654" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_FE64D86E5B4E9E90B4B8CB9320628654" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_60F78E382A030A70F53FCB932062F060" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_AB4D15F436AC505A9CEFCB9320618302" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_60F78E382A030A70F53FCB932062F060" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsRepurchaseCommitmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems" xlink:label="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems_460F89688939C1A963A5C8FA6F8D589A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentTable" xlink:label="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentTable_3F25213610C7AE0823FDC8FA6F8CDD59" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems_460F89688939C1A963A5C8FA6F8D589A" xlink:to="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentTable_3F25213610C7AE0823FDC8FA6F8CDD59" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_668782DB85497B20A23BC8FA6F8CC0B5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentTable_3F25213610C7AE0823FDC8FA6F8CDD59" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_668782DB85497B20A23BC8FA6F8CC0B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_561DEE3A579E5ED55AF7C8FA6F8D4573_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_668782DB85497B20A23BC8FA6F8CC0B5" xlink:to="loc_us-gaap_LossContingencyNatureDomain_561DEE3A579E5ED55AF7C8FA6F8D4573_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_561DEE3A579E5ED55AF7C8FA6F8D4573" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_668782DB85497B20A23BC8FA6F8CC0B5" xlink:to="loc_us-gaap_LossContingencyNatureDomain_561DEE3A579E5ED55AF7C8FA6F8D4573" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ObligationToRepurchaseFromDealersMember" xlink:label="loc_wgo_ObligationToRepurchaseFromDealersMember_D89C459FD129101E1FE0C8FA6F8D3922" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_561DEE3A579E5ED55AF7C8FA6F8D4573" xlink:to="loc_wgo_ObligationToRepurchaseFromDealersMember_D89C459FD129101E1FE0C8FA6F8D3922" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_LossContingencyRepurchaseAgreementTerm" xlink:label="loc_wgo_LossContingencyRepurchaseAgreementTerm_C6988D58065F495225F9C8FA6F8E54CA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems_460F89688939C1A963A5C8FA6F8D589A" xlink:to="loc_wgo_LossContingencyRepurchaseAgreementTerm_C6988D58065F495225F9C8FA6F8E54CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_A10DD645F49C1E58E223C8FA6F8E1958" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems_460F89688939C1A963A5C8FA6F8D589A" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_A10DD645F49C1E58E223C8FA6F8E1958" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_AccruedLossOnRepurchases" xlink:label="loc_wgo_AccruedLossOnRepurchases_4CB47AA584B1F3430506C8FA6F8E83CE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems_460F89688939C1A963A5C8FA6F8D589A" xlink:to="loc_wgo_AccruedLossOnRepurchases_4CB47AA584B1F3430506C8FA6F8E83CE" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsScheduleOfRepurchasedActivityDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/ContingentLiabilitesAndCommitmentsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurements" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurementsFairValueInputsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B901FD1AEF77409F371ECB932111E357" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B901FD1AEF77409F371ECB932111E357" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_737B1059D62807D12A5DCB9321116C71" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B901FD1AEF77409F371ECB932111E357" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_737B1059D62807D12A5DCB9321116C71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_E092ECE2B875D1B65541CB932112554D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_737B1059D62807D12A5DCB9321116C71" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_E092ECE2B875D1B65541CB932112554D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_E092ECE2B875D1B65541CB932112554D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_737B1059D62807D12A5DCB9321116C71" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_E092ECE2B875D1B65541CB932112554D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_F753DEA7CD04317F93FECB932112E4E8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_E092ECE2B875D1B65541CB932112554D" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_F753DEA7CD04317F93FECB932112E4E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E50DCD2BCB9D6FDE2A9ACB932112BD51" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B901FD1AEF77409F371ECB932111E357" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E50DCD2BCB9D6FDE2A9ACB932112BD51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_14B6B042DF20A55C3A04CB9321127D4F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E50DCD2BCB9D6FDE2A9ACB932112BD51" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_14B6B042DF20A55C3A04CB9321127D4F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_14B6B042DF20A55C3A04CB9321127D4F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_E50DCD2BCB9D6FDE2A9ACB932112BD51" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_14B6B042DF20A55C3A04CB9321127D4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_200AAE48DDCF06FD3025CB932113DDD3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_14B6B042DF20A55C3A04CB9321127D4F" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_200AAE48DDCF06FD3025CB932113DDD3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_B9C327F7F5BE4B7C92BDCB9321136FA0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_14B6B042DF20A55C3A04CB9321127D4F" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_B9C327F7F5BE4B7C92BDCB9321136FA0" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DomesticEquityFunds" xlink:label="loc_wgo_DomesticEquityFunds_38417A1DBE3EC7499A0ECB932114E863" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:to="loc_wgo_DomesticEquityFunds_38417A1DBE3EC7499A0ECB932114E863" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_InternationalEquityFunds" xlink:label="loc_wgo_InternationalEquityFunds_4CA9818E1476144AA17ECB932114A01B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:to="loc_wgo_InternationalEquityFunds_4CA9818E1476144AA17ECB932114A01B" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_FixedIncomeFunds" xlink:label="loc_wgo_FixedIncomeFunds_E4E91DDB327FEC818F43CB9321144D70" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:to="loc_wgo_FixedIncomeFunds_E4E91DDB327FEC818F43CB9321144D70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestRateDerivativeAssetsAtFairValue" xlink:label="loc_us-gaap_InterestRateDerivativeAssetsAtFairValue_D3883097ACAC51FAD3A8CB93211417F9" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:to="loc_us-gaap_InterestRateDerivativeAssetsAtFairValue_D3883097ACAC51FAD3A8CB93211417F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueNetAssetLiability" xlink:label="loc_us-gaap_FairValueNetAssetLiability_5EA30662329098308102CB93211450DE" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_974BF68A2B1B311065F2CB932113B8E8" xlink:to="loc_us-gaap_FairValueNetAssetLiability_5EA30662329098308102CB93211450DE" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_05C702BB91ABE4CA9497F4E2E8EF5C8A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0053B632B0216BF121D2F4E2E8E87211" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_05C702BB91ABE4CA9497F4E2E8EF5C8A" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0053B632B0216BF121D2F4E2E8E87211" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_9BDCE4B74D948A5EFA2BF4E2E8E95A4D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0053B632B0216BF121D2F4E2E8E87211" xlink:to="loc_us-gaap_DebtInstrumentAxis_9BDCE4B74D948A5EFA2BF4E2E8E95A4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_F8378D34BDE16B44ABE9F4E2E8EB3F8C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_9BDCE4B74D948A5EFA2BF4E2E8E95A4D" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_F8378D34BDE16B44ABE9F4E2E8EB3F8C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_F8378D34BDE16B44ABE9F4E2E8EB3F8C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_9BDCE4B74D948A5EFA2BF4E2E8E95A4D" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_F8378D34BDE16B44ABE9F4E2E8EB3F8C" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TermLoanMember" xlink:label="loc_wgo_TermLoanMember_13F4E3E2453E1EB8853AF4E2E8EC5724" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_F8378D34BDE16B44ABE9F4E2E8EB3F8C" xlink:to="loc_wgo_TermLoanMember_13F4E3E2453E1EB8853AF4E2E8EC5724" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_1DC5E5EDF06A93C79F6EF4E2E8ECCC1B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0053B632B0216BF121D2F4E2E8E87211" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_1DC5E5EDF06A93C79F6EF4E2E8ECCC1B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_206336901ACBECC462D6F4E2E8ECA154_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_1DC5E5EDF06A93C79F6EF4E2E8ECCC1B" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_206336901ACBECC462D6F4E2E8ECA154_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_206336901ACBECC462D6F4E2E8ECA154" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_1DC5E5EDF06A93C79F6EF4E2E8ECCC1B" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_206336901ACBECC462D6F4E2E8ECA154" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_8767A46627A2EC4D396FF4E2E8EDA20E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_206336901ACBECC462D6F4E2E8ECA154" xlink:to="loc_us-gaap_InterestRateSwapMember_8767A46627A2EC4D396FF4E2E8EDA20E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_E2A4C69BB613EED3B2AFF4E2E8ED26DC" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0053B632B0216BF121D2F4E2E8E87211" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_E2A4C69BB613EED3B2AFF4E2E8ED26DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_503F9D948B722E341B1BF4E2E8ED8BF6_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_E2A4C69BB613EED3B2AFF4E2E8ED26DC" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_503F9D948B722E341B1BF4E2E8ED8BF6_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_503F9D948B722E341B1BF4E2E8ED8BF6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_E2A4C69BB613EED3B2AFF4E2E8ED26DC" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_503F9D948B722E341B1BF4E2E8ED8BF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_CEC42FE4AF0F1CE93A7AF4E2E8EE5A17" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_503F9D948B722E341B1BF4E2E8ED8BF6" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_CEC42FE4AF0F1CE93A7AF4E2E8EE5A17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_F3B4D5FF1437357BDFE5F4E2E8EEBA36" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_503F9D948B722E341B1BF4E2E8ED8BF6" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_F3B4D5FF1437357BDFE5F4E2E8EEBA36" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_045F1BD620E9B6CDF4ADF4E2E8EE7F3B" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0053B632B0216BF121D2F4E2E8E87211" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_045F1BD620E9B6CDF4ADF4E2E8EE7F3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_AF56AD37E78EA3FE89B4F4E2E8EE1632_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_045F1BD620E9B6CDF4ADF4E2E8EE7F3B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_AF56AD37E78EA3FE89B4F4E2E8EE1632_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_AF56AD37E78EA3FE89B4F4E2E8EE1632" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_045F1BD620E9B6CDF4ADF4E2E8EE7F3B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_AF56AD37E78EA3FE89B4F4E2E8EE1632" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_6CA4F90ED2A6D86218F8F4E2E8EF05B9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_AF56AD37E78EA3FE89B4F4E2E8EE1632" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_6CA4F90ED2A6D86218F8F4E2E8EF05B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_687FC48A0DEAB6CD3D3BF4E2E8EFDBAB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_05C702BB91ABE4CA9497F4E2E8EF5C8A" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_687FC48A0DEAB6CD3D3BF4E2E8EFDBAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNotionalAmount" xlink:label="loc_invest_DerivativeNotionalAmount_A87E3EB45132E199F115F4E2E8F0A0C0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_05C702BB91ABE4CA9497F4E2E8EF5C8A" xlink:to="loc_invest_DerivativeNotionalAmount_A87E3EB45132E199F115F4E2E8F0A0C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8A9ED3743305DE60D70FF4E2E8F06E19" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_05C702BB91ABE4CA9497F4E2E8EF5C8A" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8A9ED3743305DE60D70FF4E2E8F06E19" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_63E9DA2E8E9F253D6066F4E2E8F0CD87" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_05C702BB91ABE4CA9497F4E2E8EF5C8A" xlink:to="loc_us-gaap_AssetImpairmentCharges_63E9DA2E8E9F253D6066F4E2E8F0CD87" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/DerivativesInvestmentsAndFairValueMeasurementsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefits" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsDeferredCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_A7204A46DEB6525F2E4AF06801E618E1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_A7204A46DEB6525F2E4AF06801E618E1" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_42A3A861BA836A870A9FF06801E7444B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_A7204A46DEB6525F2E4AF06801E618E1" xlink:to="loc_us-gaap_PlanNameAxis_42A3A861BA836A870A9FF06801E7444B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_2CF6350EFE655D15B82EF06801E7DB03_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_42A3A861BA836A870A9FF06801E7444B" xlink:to="loc_us-gaap_PlanNameDomain_2CF6350EFE655D15B82EF06801E7DB03_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_2CF6350EFE655D15B82EF06801E7DB03" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_42A3A861BA836A870A9FF06801E7444B" xlink:to="loc_us-gaap_PlanNameDomain_2CF6350EFE655D15B82EF06801E7DB03" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ExecutiveDeferredCompensationPlan2007Member" xlink:label="loc_wgo_ExecutiveDeferredCompensationPlan2007Member_D0AB2FBD58C52173518BF06801E7EBE1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_2CF6350EFE655D15B82EF06801E7DB03" xlink:to="loc_wgo_ExecutiveDeferredCompensationPlan2007Member_D0AB2FBD58C52173518BF06801E7EBE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_us-gaap_TitleOfIndividualAxis_EA5FF528B7F98AA02FB3F06801E83167" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_A7204A46DEB6525F2E4AF06801E618E1" xlink:to="loc_us-gaap_TitleOfIndividualAxis_EA5FF528B7F98AA02FB3F06801E83167" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TitleOfIndividualAxis_EA5FF528B7F98AA02FB3F06801E83167" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TitleOfIndividualAxis_EA5FF528B7F98AA02FB3F06801E83167" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_KeyEmployeesMember" xlink:label="loc_wgo_KeyEmployeesMember_64C4E40315F104DABB80F06801E80432" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F" xlink:to="loc_wgo_KeyEmployeesMember_64C4E40315F104DABB80F06801E80432" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_OfficersAndManagersMember" xlink:label="loc_wgo_OfficersAndManagersMember_1FA80187B5D1AE682BB1F06801E8A424" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F" xlink:to="loc_wgo_OfficersAndManagersMember_1FA80187B5D1AE682BB1F06801E8A424" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_OfficersAndKeyEmployeesMember" xlink:label="loc_wgo_OfficersAndKeyEmployeesMember_802843E8FA677AF469A4F06801E8F492" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_97D471E6173FB73E9B3BF06801E8241F" xlink:to="loc_wgo_OfficersAndKeyEmployeesMember_802843E8FA677AF469A4F06801E8F492" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetirementPlanTypeAxis" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_55D0D3FB49046DD89E9CF06801E8CB00" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_A7204A46DEB6525F2E4AF06801E618E1" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_55D0D3FB49046DD89E9CF06801E8CB00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_5FEEABE29FD688F3CB00F06801E92D42_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_55D0D3FB49046DD89E9CF06801E8CB00" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_5FEEABE29FD688F3CB00F06801E92D42_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_5FEEABE29FD688F3CB00F06801E92D42" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_55D0D3FB49046DD89E9CF06801E8CB00" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_5FEEABE29FD688F3CB00F06801E92D42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_C0CDC7ADBA0CDAC30481F06801E9278A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_5FEEABE29FD688F3CB00F06801E92D42" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_C0CDC7ADBA0CDAC30481F06801E9278A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember" xlink:label="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_7E587DAACAB32F6A61D1F06801E9B06C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_5FEEABE29FD688F3CB00F06801E92D42" xlink:to="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_7E587DAACAB32F6A61D1F06801E9B06C" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DeferredCompensationArrangementWithIndividualVestingAge" xlink:label="loc_wgo_DeferredCompensationArrangementWithIndividualVestingAge_2E259C270B1CE85A2B2DF06801EAE852" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_wgo_DeferredCompensationArrangementWithIndividualVestingAge_2E259C270B1CE85A2B2DF06801EAE852" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DeferredCompensationArrangementRequisiteServicePeriod" xlink:label="loc_wgo_DeferredCompensationArrangementRequisiteServicePeriod_A0567214B1F74F621CF6F06801EA9BC6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_wgo_DeferredCompensationArrangementRequisiteServicePeriod_A0567214B1F74F621CF6F06801EA9BC6" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DeferredCompensationArrangementRequisteServicePeriodPriorToDecember1992" xlink:label="loc_wgo_DeferredCompensationArrangementRequisteServicePeriodPriorToDecember1992_E09FBBBD5255668E12D0F06801EA7557" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_wgo_DeferredCompensationArrangementRequisteServicePeriodPriorToDecember1992_E09FBBBD5255668E12D0F06801EA7557" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_9B05CAFF1444CEAACD04F06801EA4141" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_9B05CAFF1444CEAACD04F06801EA4141" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DeferredCompensationArrangementWithIndividualMaximumContractualTermAfterRetirement" xlink:label="loc_wgo_DeferredCompensationArrangementWithIndividualMaximumContractualTermAfterRetirement_F25896166BD8DC1C06CDF06801EA9FD5" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_wgo_DeferredCompensationArrangementWithIndividualMaximumContractualTermAfterRetirement_F25896166BD8DC1C06CDF06801EA9FD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationPlanAssets" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_ADB9307F62EE79945CB1F06801EB29F7" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_ADB9307F62EE79945CB1F06801EB29F7" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DeferredCompensationArrangementWithIndividualMaximumSalaryDeferral" xlink:label="loc_wgo_DeferredCompensationArrangementWithIndividualMaximumSalaryDeferral_C099D7474EC3250F435CF06801EB454A" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_wgo_DeferredCompensationArrangementWithIndividualMaximumSalaryDeferral_C099D7474EC3250F435CF06801EB454A" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DeferredCompensationArrangementWithIndividualMaximumCashIncentiveAwardDeferral" xlink:label="loc_wgo_DeferredCompensationArrangementWithIndividualMaximumCashIncentiveAwardDeferral_F9E0F13133B64092B141F06801EBAD9F" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_wgo_DeferredCompensationArrangementWithIndividualMaximumCashIncentiveAwardDeferral_F9E0F13133B64092B141F06801EBAD9F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_F083A6EE67DA6FE3287BF06801EBF72A" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_D71FB3D9BBBE10E8FCEAF06801E9DD8A" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_F083A6EE67DA6FE3287BF06801EBF72A" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsInvestmentInLifeInsuranceDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsPostretirementBenefitIncomeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsPostretirementHealthCareAndDeferredCompensationBenefitsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsPostretirementNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/EmployeeAndRetireeBenefitsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsFutureAmortizationOfIntangibleAssetsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssets" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssetsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsScheduleOfGoodwillDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_7B90F22E30B12B34FEBCF89B387EB451" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_7D9CA60CB868226420B6F89B387DACAB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_7B90F22E30B12B34FEBCF89B387EB451" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_7D9CA60CB868226420B6F89B387DACAB" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_91F9496DCB52FE55C1BAF89B387DA85B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_7D9CA60CB868226420B6F89B387DACAB" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_91F9496DCB52FE55C1BAF89B387DA85B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_592471B284C58EDCC847F89B387DEE17_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_91F9496DCB52FE55C1BAF89B387DA85B" xlink:to="loc_us-gaap_SegmentDomain_592471B284C58EDCC847F89B387DEE17_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_592471B284C58EDCC847F89B387DEE17" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_91F9496DCB52FE55C1BAF89B387DA85B" xlink:to="loc_us-gaap_SegmentDomain_592471B284C58EDCC847F89B387DEE17" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TowableMember" xlink:label="loc_wgo_TowableMember_7C7D86F344A0102E2447F89B387E393A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_592471B284C58EDCC847F89B387DEE17" xlink:to="loc_wgo_TowableMember_7C7D86F344A0102E2447F89B387E393A" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_CorporateAllOtherMember" xlink:label="loc_wgo_CorporateAllOtherMember_94AF21DD122F5D467518F89B387E5584" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_592471B284C58EDCC847F89B387DEE17" xlink:to="loc_wgo_CorporateAllOtherMember_94AF21DD122F5D467518F89B387E5584" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_7B1D104D2C3D2C7A4C7BF89B387E514B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_7B90F22E30B12B34FEBCF89B387EB451" xlink:to="loc_us-gaap_Goodwill_7B1D104D2C3D2C7A4C7BF89B387E514B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillPeriodIncreaseDecrease" xlink:label="loc_us-gaap_GoodwillPeriodIncreaseDecrease_ECEEF63EFE269630F176F89B387F9606" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_7B90F22E30B12B34FEBCF89B387EB451" xlink:to="loc_us-gaap_GoodwillPeriodIncreaseDecrease_ECEEF63EFE269630F176F89B387F9606" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:label="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_AE44AE116C97C0EBF7A3F89B387F6D00" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_7B90F22E30B12B34FEBCF89B387EB451" xlink:to="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_AE44AE116C97C0EBF7A3F89B387F6D00" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ScheduleofIntangibleAssetsLineItems" xlink:label="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:type="locator" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ScheduleofIntangibleAssetsTable" xlink:label="loc_wgo_ScheduleofIntangibleAssetsTable_53307A8BE05F57CECED5CB9320D605D5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:to="loc_wgo_ScheduleofIntangibleAssetsTable_53307A8BE05F57CECED5CB9320D605D5" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_BCEC83AFFDFD3F0582A1CB9320D69881" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_wgo_ScheduleofIntangibleAssetsTable_53307A8BE05F57CECED5CB9320D605D5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_BCEC83AFFDFD3F0582A1CB9320D69881" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_BCEC83AFFDFD3F0582A1CB9320D69881" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_BCEC83AFFDFD3F0582A1CB9320D69881" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_DealerNetworkMember" xlink:label="loc_wgo_DealerNetworkMember_9DD81A12B39D444810A3CB9320D6C0EE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8" xlink:to="loc_wgo_DealerNetworkMember_9DD81A12B39D444810A3CB9320D6C0EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrderOrProductionBacklogMember" xlink:label="loc_us-gaap_OrderOrProductionBacklogMember_EBC71A73680601FAA8A1CB9320D7726A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8" xlink:to="loc_us-gaap_OrderOrProductionBacklogMember_EBC71A73680601FAA8A1CB9320D7726A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_C409358B787142B832D3CB9320D768F1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_C409358B787142B832D3CB9320D768F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OffMarketFavorableLeaseMember" xlink:label="loc_us-gaap_OffMarketFavorableLeaseMember_3117726EB80B75919129CB9320D7D4EC" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0986300F70B46584E49FCB9320D61DF8" xlink:to="loc_us-gaap_OffMarketFavorableLeaseMember_3117726EB80B75919129CB9320D7D4EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_238FD5344670C42DCCE0CB9320D7ABE6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_wgo_ScheduleofIntangibleAssetsTable_53307A8BE05F57CECED5CB9320D605D5" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_238FD5344670C42DCCE0CB9320D7ABE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_BDC8A95F663CF8C0D3D2CB9320D71BD8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_238FD5344670C42DCCE0CB9320D7ABE6" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_BDC8A95F663CF8C0D3D2CB9320D71BD8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_BDC8A95F663CF8C0D3D2CB9320D71BD8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_238FD5344670C42DCCE0CB9320D7ABE6" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_BDC8A95F663CF8C0D3D2CB9320D71BD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TradeNamesMember" xlink:label="loc_us-gaap_TradeNamesMember_E54BD48F3AFF2F989459CB9320D80961" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_BDC8A95F663CF8C0D3D2CB9320D71BD8" xlink:to="loc_us-gaap_TradeNamesMember_E54BD48F3AFF2F989459CB9320D80961" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_9B1F7BE3E23D8E4FC6BFCB9320D82521" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_9B1F7BE3E23D8E4FC6BFCB9320D82521" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2E6EBD1A467808DF47A8CB9320D8A5B4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2E6EBD1A467808DF47A8CB9320D8A5B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_8D29A9CBB332E11D64A0CB9320D82B35" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_8D29A9CBB332E11D64A0CB9320D82B35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_8FA9E44E7F115630AD69CB9320D91454" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_8FA9E44E7F115630AD69CB9320D91454" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_C5E40C52C07F860587DECBB403B34FD5" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_ScheduleofIntangibleAssetsLineItems_1A9F06AC63F12CC45414CB9320D82E29" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_C5E40C52C07F860587DECBB403B34FD5" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomePerShare" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomePerShareCalculationOfBasicAndDilutedIncomePerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDilutedLineItems" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_DFFEA7ECFF7333264CF1CB931FF6BB5B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_DFFEA7ECFF7333264CF1CB931FF6BB5B" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_9080CF44419D92ADA1A1CB931FF6DDE9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_DFFEA7ECFF7333264CF1CB931FF6BB5B" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_9080CF44419D92ADA1A1CB931FF6DDE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_E4C57362CE5E438F0117CB931FF753DD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_9080CF44419D92ADA1A1CB931FF6DDE9" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_E4C57362CE5E438F0117CB931FF753DD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_E4C57362CE5E438F0117CB931FF753DD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_9080CF44419D92ADA1A1CB931FF6DDE9" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_E4C57362CE5E438F0117CB931FF753DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_5AC5AF07A23337804001CB931FF74F1C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_E4C57362CE5E438F0117CB931FF753DD" xlink:to="loc_us-gaap_EmployeeStockOptionMember_5AC5AF07A23337804001CB931FF74F1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_D2B9068F467124035B3ACB931FF74B13" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_NetIncomeLoss_D2B9068F467124035B3ACB931FF74B13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F2D684EBFB749BACDF9ECB931FF80A85" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F2D684EBFB749BACDF9ECB931FF80A85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_FB26CEBF67813176448ECB931FF8842C" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_FB26CEBF67813176448ECB931FF8842C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_1277A6CD5AECA114E4C3CB931FF839CB" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_1277A6CD5AECA114E4C3CB931FF839CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_6416644E1B8E3CAAB342CB931FF85359" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_6416644E1B8E3CAAB342CB931FF85359" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_73FFBE8096727470EFE2CB931FF8C6D0" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_EarningsPerShareBasic_73FFBE8096727470EFE2CB931FF8C6D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_948950E39F1B1B44B4B0CB931FF99478" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D84492213BD16AF1F4A5CB931FF79D90" xlink:to="loc_us-gaap_EarningsPerShareDiluted_948950E39F1B1B44B4B0CB931FF99478" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomePerShareTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxesChangesInUnrecognizedTaxBenefitsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxesComponentsOfIncomeTaxBenefitProvisionDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxesReconciliationOfUSStatutoryIncomeTaxRateDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxesSignificantItemsComprisingDeferredTaxesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/IncomeTaxesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/InterimFinancialInformationUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/InterimFinancialInformationUnauditedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_4FA82CD54FEB83CCA462F4AD0C7EE6E6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_4B8F5FEBC24A90120AC4F4AD0C7DD419" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_4FA82CD54FEB83CCA462F4AD0C7EE6E6" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_4B8F5FEBC24A90120AC4F4AD0C7DD419" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis_08718B6A9C060076143BF4AD0C7D433F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_4B8F5FEBC24A90120AC4F4AD0C7DD419" xlink:to="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis_08718B6A9C060076143BF4AD0C7D433F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsForErrorCorrectionDomain" xlink:label="loc_us-gaap_AdjustmentsForErrorCorrectionDomain_985ABC8B19F1EDBC6796F4AD0C7E489C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis_08718B6A9C060076143BF4AD0C7D433F" xlink:to="loc_us-gaap_AdjustmentsForErrorCorrectionDomain_985ABC8B19F1EDBC6796F4AD0C7E489C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsForErrorCorrectionDomain" xlink:label="loc_us-gaap_AdjustmentsForErrorCorrectionDomain_985ABC8B19F1EDBC6796F4AD0C7E489C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis_08718B6A9C060076143BF4AD0C7D433F" xlink:to="loc_us-gaap_AdjustmentsForErrorCorrectionDomain_985ABC8B19F1EDBC6796F4AD0C7E489C" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_Inventoryerrorcorrection" xlink:label="loc_wgo_Inventoryerrorcorrection_4B20BB27E13940A40B04F4BB9ED73B24" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_4FA82CD54FEB83CCA462F4AD0C7EE6E6" xlink:to="loc_wgo_Inventoryerrorcorrection_4B20BB27E13940A40B04F4BB9ED73B24" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/InterimFinancialInformationUnauditedTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/Inventories" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/InventoriesInventoryBasisDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/InventoriesInventoryScheduleDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/InventoriesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/LongTermDebtComponentsOfLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_0AEF4006DE5184844BEECB9320B702A6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_DebtInstrumentTable_0AEF4006DE5184844BEECB9320B702A6" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_F6E6625BAD2D2740C9B5CB9320B9D096" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_0AEF4006DE5184844BEECB9320B702A6" xlink:to="loc_us-gaap_DebtInstrumentAxis_F6E6625BAD2D2740C9B5CB9320B9D096" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_0335FD4959D4B1CEDB0BCB9320B980B3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_F6E6625BAD2D2740C9B5CB9320B9D096" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_0335FD4959D4B1CEDB0BCB9320B980B3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_0335FD4959D4B1CEDB0BCB9320B980B3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_F6E6625BAD2D2740C9B5CB9320B9D096" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_0335FD4959D4B1CEDB0BCB9320B980B3" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ABLCreditFacilityMember" xlink:label="loc_wgo_ABLCreditFacilityMember_17644405A8C2B088E0C4CB9320BA94E7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0335FD4959D4B1CEDB0BCB9320B980B3" xlink:to="loc_wgo_ABLCreditFacilityMember_17644405A8C2B088E0C4CB9320BA94E7" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TermLoanMember" xlink:label="loc_wgo_TermLoanMember_A36AF4C7EE5F3A805237CB9320BAEB6C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0335FD4959D4B1CEDB0BCB9320B980B3" xlink:to="loc_wgo_TermLoanMember_A36AF4C7EE5F3A805237CB9320BAEB6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_FBD9FC9E545D4FE65C98CB9320BB4AC6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_FBD9FC9E545D4FE65C98CB9320BB4AC6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_6967FEE6FB2C2F72E222CB9320BB0A88" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_DebtInstrumentTerm_6967FEE6FB2C2F72E222CB9320BB0A88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_04439F2D6B5B55852130CB9320BB7E17" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_04439F2D6B5B55852130CB9320BB7E17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_8B57C9A005395723FA7FCB9320BBCD0F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_8B57C9A005395723FA7FCB9320BBCD0F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_76C6FA521BC95D257E81CB9320BB70E3" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_LongTermDebt_76C6FA521BC95D257E81CB9320BB70E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_96E71A979B2FC52FEEDBCB9320BCEA2E" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_LongTermDebtCurrent_96E71A979B2FC52FEEDBCB9320BCEA2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_F1EBD408C190CBA04FCCCB9320BC81A0" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_F1EBD408C190CBA04FCCCB9320BC81A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_FE49769DB5509153BEB3CBD21042288C" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_E49E2ECB0FE5F8AC346BCB9320BACEB7" xlink:to="loc_us-gaap_LongTermDebtFairValue_FE49769DB5509153BEB3CBD21042288C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/LongTermDebtContractualMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_EA1258B67B12323CF149CB9320A1532C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_DebtInstrumentTable_EA1258B67B12323CF149CB9320A1532C" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_5F7C68240AB394B4459FCB9320A23469" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_EA1258B67B12323CF149CB9320A1532C" xlink:to="loc_us-gaap_DebtInstrumentAxis_5F7C68240AB394B4459FCB9320A23469" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_DFD52998AAD4AD0366D2CB9320A31309_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_5F7C68240AB394B4459FCB9320A23469" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_DFD52998AAD4AD0366D2CB9320A31309_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_DFD52998AAD4AD0366D2CB9320A31309" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_5F7C68240AB394B4459FCB9320A23469" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_DFD52998AAD4AD0366D2CB9320A31309" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TermLoanMember" xlink:label="loc_wgo_TermLoanMember_A0423B4D1120D2B90AD6CB9320A33A46" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_DFD52998AAD4AD0366D2CB9320A31309" xlink:to="loc_wgo_TermLoanMember_A0423B4D1120D2B90AD6CB9320A33A46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_61A416EA4FB178BAE8A6CB9320A3F300" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_61A416EA4FB178BAE8A6CB9320A3F300" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0DE85F9803820214F324CB9320A41108" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_0DE85F9803820214F324CB9320A41108" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_9193B2D1FD24F8BA17EFCB9320A484BF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_9193B2D1FD24F8BA17EFCB9320A484BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_C515CE0AA73876FCF5BACB9320A495B8" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_C515CE0AA73876FCF5BACB9320A495B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_28870676CBF9689262BACBCFDF9099C3" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_28870676CBF9689262BACBCFDF9099C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_7026AD24D3D2CA732B9ACB9320A4407D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_36B7C24E19D9206623A4CB9320A3A089" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_7026AD24D3D2CA732B9ACB9320A4407D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/LongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_BAC06D3218B82BD17834F431BD41A7C2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_DebtInstrumentTable_BAC06D3218B82BD17834F431BD41A7C2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_260DFDE80E0803607FC3F431BD42912B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_BAC06D3218B82BD17834F431BD41A7C2" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_260DFDE80E0803607FC3F431BD42912B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_DDB3B997B145FA8A7BD3F431BD42967C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_260DFDE80E0803607FC3F431BD42912B" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_DDB3B997B145FA8A7BD3F431BD42967C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_DDB3B997B145FA8A7BD3F431BD42967C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_260DFDE80E0803607FC3F431BD42912B" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_DDB3B997B145FA8A7BD3F431BD42967C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_5E874400038041DBFA86F431BD42694D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_DDB3B997B145FA8A7BD3F431BD42967C" xlink:to="loc_us-gaap_SubsequentEventMember_5E874400038041DBFA86F431BD42694D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_08F377327BCC96F01052F431BD4369C6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_BAC06D3218B82BD17834F431BD41A7C2" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_08F377327BCC96F01052F431BD4369C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_B8F82415A0597F87BFE0F431BD4357FC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_08F377327BCC96F01052F431BD4369C6" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_B8F82415A0597F87BFE0F431BD4357FC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_B8F82415A0597F87BFE0F431BD4357FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_08F377327BCC96F01052F431BD4369C6" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_B8F82415A0597F87BFE0F431BD4357FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="loc_us-gaap_LetterOfCreditMember_AD1642D6572FA7297B57F431BD438282" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_B8F82415A0597F87BFE0F431BD4357FC" xlink:to="loc_us-gaap_LetterOfCreditMember_AD1642D6572FA7297B57F431BD438282" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_7EDDA9815DE2F8956EB3F431BD449C3B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_BAC06D3218B82BD17834F431BD41A7C2" xlink:to="loc_us-gaap_DebtInstrumentAxis_7EDDA9815DE2F8956EB3F431BD449C3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_7EDDA9815DE2F8956EB3F431BD449C3B" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_7EDDA9815DE2F8956EB3F431BD449C3B" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ABLCreditFacilityMember" xlink:label="loc_wgo_ABLCreditFacilityMember_85902E531F2398ED5C21F431BD44D07D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7" xlink:to="loc_wgo_ABLCreditFacilityMember_85902E531F2398ED5C21F431BD44D07D" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TermLoanMember" xlink:label="loc_wgo_TermLoanMember_796D332914D570637782F431BD45C152" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7" xlink:to="loc_wgo_TermLoanMember_796D332914D570637782F431BD45C152" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="loc_us-gaap_LetterOfCreditMember_950FB76507D584C0B95CF431BD451952" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7" xlink:to="loc_us-gaap_LetterOfCreditMember_950FB76507D584C0B95CF431BD451952" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_PriorCreditAgreementMember" xlink:label="loc_wgo_PriorCreditAgreementMember_A2D8C0322C506A9BA7A5F431BD454B66" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_B567B31EB856F1B4700AF431BD44F8C7" xlink:to="loc_wgo_PriorCreditAgreementMember_A2D8C0322C506A9BA7A5F431BD454B66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_A91C7FF88DD4ABCEB3EBF431BD475308" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_A91C7FF88DD4ABCEB3EBF431BD475308" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_4B507E0822FCE7AA42E1F431BD477F08" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_DebtInstrumentTerm_4B507E0822FCE7AA42E1F431BD477F08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_698BBA597E322E984F59F431BD487019" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_698BBA597E322E984F59F431BD487019" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_EC5B1CC5F54AFB7A2626F431BD48C0CD" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_EC5B1CC5F54AFB7A2626F431BD48C0CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_0809B9FD3551B17D597BF431BD48C371" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_0809B9FD3551B17D597BF431BD48C371" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_0317070142F2060FF42AF431BD486EB8" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_0317070142F2060FF42AF431BD486EB8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_4E21CE1F28AD79E834FCF431BD4994C3" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83908AA285DD3C696ADFF431BD471C3F" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_4E21CE1F28AD79E834FCF431BD4994C3" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/LongTermDebtNotes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/LongTermDebtTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/PropertyPlantAndEquipment" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/PropertyPlantAndEquipmentPropertyPlantAndEquipmentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70557B1569E8A431DEFAC8FA7244D376" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C184AC134A4A87063ECBC8FA72421ED2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70557B1569E8A431DEFAC8FA7244D376" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C184AC134A4A87063ECBC8FA72421ED2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_31D9AC3467DA4A2D2E8BC8FA72435D5C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C184AC134A4A87063ECBC8FA72421ED2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_31D9AC3467DA4A2D2E8BC8FA72435D5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_31D9AC3467DA4A2D2E8BC8FA72435D5C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_31D9AC3467DA4A2D2E8BC8FA72435D5C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_9985424DD886079EAD07C8FA7243EE62" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:to="loc_us-gaap_LandMember_9985424DD886079EAD07C8FA7243EE62" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_915D218EA5FF000BB7C1C8FA7243C0E7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_915D218EA5FF000BB7C1C8FA7243C0E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_A4CEB294520963A7AF65C8FA7244D662" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_A4CEB294520963A7AF65C8FA7244D662" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_1D0E8974FDEDAFFF695DC8FA7244FA75" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_1D0E8974FDEDAFFF695DC8FA7244FA75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransportationEquipmentMember" xlink:label="loc_us-gaap_TransportationEquipmentMember_FD89B9AD779AB456C137C8FA7244D287" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_97E1F26416104953A57DC8FA7243E50F" xlink:to="loc_us-gaap_TransportationEquipmentMember_FD89B9AD779AB456C137C8FA7244D287" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_4F06F63EEBC96F67B767C8FA7244ECED" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70557B1569E8A431DEFAC8FA7244D376" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_4F06F63EEBC96F67B767C8FA7244ECED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_D35436CDDFECF26CF8B8C8FA7245A164" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70557B1569E8A431DEFAC8FA7244D376" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_D35436CDDFECF26CF8B8C8FA7245A164" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_39758E10CFE68817A2AAC8FA7245049F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70557B1569E8A431DEFAC8FA7244D376" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_39758E10CFE68817A2AAC8FA7245049F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/PropertyPlantAndEquipmentPropertyPlantAndEquipmentNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/PropertyPlantAndEquipmentTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/RestructuringDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_53664698F778892F5E1FD4E7E369E257" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_5F7AC3BA5172B3717EEAD4E7E3613258" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_53664698F778892F5E1FD4E7E369E257" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_5F7AC3BA5172B3717EEAD4E7E3613258" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_EBCA0918A0C395352CC9D4E7E3610883" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_5F7AC3BA5172B3717EEAD4E7E3613258" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_EBCA0918A0C395352CC9D4E7E3610883" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_C6E1D0D6BBBFA63B5D1CD4E7E3619F4E_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_EBCA0918A0C395352CC9D4E7E3610883" xlink:to="loc_us-gaap_SegmentDomain_C6E1D0D6BBBFA63B5D1CD4E7E3619F4E_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_C6E1D0D6BBBFA63B5D1CD4E7E3619F4E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_EBCA0918A0C395352CC9D4E7E3610883" xlink:to="loc_us-gaap_SegmentDomain_C6E1D0D6BBBFA63B5D1CD4E7E3619F4E" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_MotorhomeMember" xlink:label="loc_wgo_MotorhomeMember_4EA25AFC8689A23F02ECD4E7E362AF68" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_C6E1D0D6BBBFA63B5D1CD4E7E3619F4E" xlink:to="loc_wgo_MotorhomeMember_4EA25AFC8689A23F02ECD4E7E362AF68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_51CF8AF593398F718885D4E7E36259F5" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_5F7AC3BA5172B3717EEAD4E7E3613258" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_51CF8AF593398F718885D4E7E36259F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_EFBF876DDC85F6055A68D4E7E3676E17_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_51CF8AF593398F718885D4E7E36259F5" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_EFBF876DDC85F6055A68D4E7E3676E17_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_EFBF876DDC85F6055A68D4E7E3676E17" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_51CF8AF593398F718885D4E7E36259F5" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_EFBF876DDC85F6055A68D4E7E3676E17" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_JunctionCityORProductionSiteDomain" xlink:label="loc_wgo_JunctionCityORProductionSiteDomain_709787839207B92EE587D4E7E367A7F2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_EFBF876DDC85F6055A68D4E7E3676E17" xlink:to="loc_wgo_JunctionCityORProductionSiteDomain_709787839207B92EE587D4E7E367A7F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_20EF8A68A94ACE07C4C9D4E7E368711F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_5F7AC3BA5172B3717EEAD4E7E3613258" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_20EF8A68A94ACE07C4C9D4E7E368711F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_C22D72CAE02FC4B87B7CD4E7E368D164_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_20EF8A68A94ACE07C4C9D4E7E368711F" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_C22D72CAE02FC4B87B7CD4E7E368D164_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_C22D72CAE02FC4B87B7CD4E7E368D164" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_20EF8A68A94ACE07C4C9D4E7E368711F" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_C22D72CAE02FC4B87B7CD4E7E368D164" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="loc_us-gaap_CostOfSalesMember_CC10E304F0A60B0C3E84D4E7E3680A24" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_C22D72CAE02FC4B87B7CD4E7E368D164" xlink:to="loc_us-gaap_CostOfSalesMember_CC10E304F0A60B0C3E84D4E7E3680A24" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_0D9B08A4EAFE7D4EBB26D4E7E3684434" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_C22D72CAE02FC4B87B7CD4E7E368D164" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_0D9B08A4EAFE7D4EBB26D4E7E3684434" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_E2E47319BC010FBA8FD4D4E7E36869D4" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_5F7AC3BA5172B3717EEAD4E7E3613258" xlink:to="loc_us-gaap_StatementScenarioAxis_E2E47319BC010FBA8FD4D4E7E36869D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_4842793BB299DE8C49F5D4E7E369AF69_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_E2E47319BC010FBA8FD4D4E7E36869D4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_4842793BB299DE8C49F5D4E7E369AF69_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_4842793BB299DE8C49F5D4E7E369AF69" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_E2E47319BC010FBA8FD4D4E7E36869D4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_4842793BB299DE8C49F5D4E7E369AF69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_19542FC60D3B0952866DD4E7E3695837" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_4842793BB299DE8C49F5D4E7E369AF69" xlink:to="loc_us-gaap_ScenarioForecastMember_19542FC60D3B0952866DD4E7E3695837" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_6771742BF9DEB3396015D4E7E369F30F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_53664698F778892F5E1FD4E7E369E257" xlink:to="loc_us-gaap_RestructuringCharges_6771742BF9DEB3396015D4E7E369F30F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/RestructuringNotes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/RestructuringTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/RevenueDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_717E4F7DC4BD47817207CC32207AC86E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisaggregationOfRevenueTable" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_251ED9A783DAB8C120CFCC3220789875" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_717E4F7DC4BD47817207CC32207AC86E" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_251ED9A783DAB8C120CFCC3220789875" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_E3FF94C31DC136EB3239CC337A5E927F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_251ED9A783DAB8C120CFCC3220789875" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_E3FF94C31DC136EB3239CC337A5E927F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_E3FF94C31DC136EB3239CC337A5E927F" xlink:to="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_E3FF94C31DC136EB3239CC337A5E927F" xlink:to="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TowableMember" xlink:label="loc_wgo_TowableMember_AD0D535CCF4B11A41BBBCC337B00DEB1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11" xlink:to="loc_wgo_TowableMember_AD0D535CCF4B11A41BBBCC337B00DEB1" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_MotorhomeMember" xlink:label="loc_wgo_MotorhomeMember_B4CE012FE9941F6932BDCC345E685266" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11" xlink:to="loc_wgo_MotorhomeMember_B4CE012FE9941F6932BDCC345E685266" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_CorporateAllOtherMember" xlink:label="loc_wgo_CorporateAllOtherMember_32A358DA13FBE42E4957CC35A5795A17" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_4C8D1E5C305CBE6DDE5CCC337A61CF11" xlink:to="loc_wgo_CorporateAllOtherMember_32A358DA13FBE42E4957CC35A5795A17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srt_ProductOrServiceAxis_A7529C718DBC8B979ACBCC3304743DFE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_251ED9A783DAB8C120CFCC3220789875" xlink:to="loc_srt_ProductOrServiceAxis_A7529C718DBC8B979ACBCC3304743DFE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_A7529C718DBC8B979ACBCC3304743DFE" xlink:to="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_A7529C718DBC8B979ACBCC3304743DFE" xlink:to="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_FifthWheelDomain" xlink:label="loc_wgo_FifthWheelDomain_1822F61C150C53181FC8CC334BB55696" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:to="loc_wgo_FifthWheelDomain_1822F61C150C53181FC8CC334BB55696" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TravelTrailerDomain" xlink:label="loc_wgo_TravelTrailerDomain_3222A4DD21A560E2E3A6CC33C50A9A03" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:to="loc_wgo_TravelTrailerDomain_3222A4DD21A560E2E3A6CC33C50A9A03" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_OtherDomain" xlink:label="loc_wgo_OtherDomain_91CAF577B1E7207C4384CC3422884D47" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:to="loc_wgo_OtherDomain_91CAF577B1E7207C4384CC3422884D47" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ClassADomain" xlink:label="loc_wgo_ClassADomain_F68CF4071CD1CE27E079CC34AF1C12BC" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:to="loc_wgo_ClassADomain_F68CF4071CD1CE27E079CC34AF1C12BC" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ClassBDomain" xlink:label="loc_wgo_ClassBDomain_C3ED8CD55E17043E458FCC34F61FE2F2" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:to="loc_wgo_ClassBDomain_C3ED8CD55E17043E458FCC34F61FE2F2" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ClassCDomain" xlink:label="loc_wgo_ClassCDomain_01D7E6CEF20CDAF2F9E3CC3530A6BB09" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_084C378B14475697D619CC330478017C" xlink:to="loc_wgo_ClassCDomain_01D7E6CEF20CDAF2F9E3CC3530A6BB09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_014DEAD1EA74FF2CD8C3CC337932BF51" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_717E4F7DC4BD47817207CC32207AC86E" xlink:to="loc_us-gaap_Revenues_014DEAD1EA74FF2CD8C3CC337932BF51" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/RevenueNotes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/RevenueTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlans" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlansExpenseComponentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_CADC1562D005402C3B41F446895C7392" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8717A0C96D003CB4B6D7F446895A0EFD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_CADC1562D005402C3B41F446895C7392" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8717A0C96D003CB4B6D7F446895A0EFD" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_75D56FF0B2FBE4532942F446895A49F8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8717A0C96D003CB4B6D7F446895A0EFD" xlink:to="loc_us-gaap_AwardTypeAxis_75D56FF0B2FBE4532942F446895A49F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_75D56FF0B2FBE4532942F446895A49F8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_75D56FF0B2FBE4532942F446895A49F8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TimebasedshareawardsMember" xlink:label="loc_wgo_TimebasedshareawardsMember_4D0A98A25E90F6DF08F2F446895B5065" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0" xlink:to="loc_wgo_TimebasedshareawardsMember_4D0A98A25E90F6DF08F2F446895B5065" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_PerformancebasedshareawardMember" xlink:label="loc_wgo_PerformancebasedshareawardMember_E04DCBF605923931764CF446895B0129" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0" xlink:to="loc_wgo_PerformancebasedshareawardMember_E04DCBF605923931764CF446895B0129" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_934C9B36DAD72F635FC4F446895B0ECA" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0" xlink:to="loc_us-gaap_EmployeeStockOptionMember_934C9B36DAD72F635FC4F446895B0ECA" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_OtherequityawardsMember" xlink:label="loc_wgo_OtherequityawardsMember_44F0AEBBA27D2616B25CF446895C133A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2E6A4E8C36980DE47594F446895B92A0" xlink:to="loc_wgo_OtherequityawardsMember_44F0AEBBA27D2616B25CF446895C133A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C3EA2B90A9EEF544B71DF446895CE0F1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_CADC1562D005402C3B41F446895C7392" xlink:to="loc_us-gaap_ShareBasedCompensation_C3EA2B90A9EEF544B71DF446895CE0F1" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlansNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_7011FD6D5898640D5ECAF4AD0CFB5544" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:to="loc_us-gaap_AwardTypeAxis_7011FD6D5898640D5ECAF4AD0CFB5544" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_7011FD6D5898640D5ECAF4AD0CFB5544" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_7011FD6D5898640D5ECAF4AD0CFB5544" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOwnershipPlanESOPPlanDomain" xlink:label="loc_us-gaap_EmployeeStockOwnershipPlanESOPPlanDomain_DDAC1B0C15667D8EF4A6F4AD0CFBC38D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:to="loc_us-gaap_EmployeeStockOwnershipPlanESOPPlanDomain_DDAC1B0C15667D8EF4A6F4AD0CFBC38D" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TimebasedshareawardsMember" xlink:label="loc_wgo_TimebasedshareawardsMember_CCD9889B9A116D38FEECF4AD0CFBE898" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:to="loc_wgo_TimebasedshareawardsMember_CCD9889B9A116D38FEECF4AD0CFBE898" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_PerformancebasedshareawardMember" xlink:label="loc_wgo_PerformancebasedshareawardMember_FB56CD152AC4B420FBE0F4AD0CFB0A4B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:to="loc_wgo_PerformancebasedshareawardMember_FB56CD152AC4B420FBE0F4AD0CFB0A4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_8A7FD10027F9C0C16FDAF4AD0CFC741F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:to="loc_us-gaap_EmployeeStockOptionMember_8A7FD10027F9C0C16FDAF4AD0CFC741F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_74EFF76321E65AA863BBF4AD0CFC05D4" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B887BADC016BA302A9D8F4AD0CFB7039" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_74EFF76321E65AA863BBF4AD0CFC05D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_2E5463B62EF9E29A2701F4AD0CFC9646" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:to="loc_us-gaap_PlanNameAxis_2E5463B62EF9E29A2701F4AD0CFC9646" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_15C160804F6BEDD0F1ACF4AD0CFC2A20_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_2E5463B62EF9E29A2701F4AD0CFC9646" xlink:to="loc_us-gaap_PlanNameDomain_15C160804F6BEDD0F1ACF4AD0CFC2A20_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_15C160804F6BEDD0F1ACF4AD0CFC2A20" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_2E5463B62EF9E29A2701F4AD0CFC9646" xlink:to="loc_us-gaap_PlanNameDomain_15C160804F6BEDD0F1ACF4AD0CFC2A20" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_IncentiveCompensationPlan2019Member" xlink:label="loc_wgo_IncentiveCompensationPlan2019Member_401E39CF820C5452D800F4AD0CFC32B8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_15C160804F6BEDD0F1ACF4AD0CFC2A20" xlink:to="loc_wgo_IncentiveCompensationPlan2019Member_401E39CF820C5452D800F4AD0CFC32B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_us-gaap_TitleOfIndividualAxis_C9781BCA09A888890B96F4AD0CFD1109" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:to="loc_us-gaap_TitleOfIndividualAxis_C9781BCA09A888890B96F4AD0CFD1109" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_89207B133B02EDBDE9F9F4AD0CFD0E97_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TitleOfIndividualAxis_C9781BCA09A888890B96F4AD0CFD1109" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_89207B133B02EDBDE9F9F4AD0CFD0E97_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_89207B133B02EDBDE9F9F4AD0CFD0E97" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TitleOfIndividualAxis_C9781BCA09A888890B96F4AD0CFD1109" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_89207B133B02EDBDE9F9F4AD0CFD0E97" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_KeyManagementMember" xlink:label="loc_wgo_KeyManagementMember_C8C89F17B7C5AA2028CEF4AD0CFDC075" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_89207B133B02EDBDE9F9F4AD0CFD0E97" xlink:to="loc_wgo_KeyManagementMember_C8C89F17B7C5AA2028CEF4AD0CFDC075" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_367F258F3B56623B5858F4AD0CFEC857" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_367F258F3B56623B5858F4AD0CFEC857" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_495424DE00DC0AA523DCF4AD0CFEA488_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_367F258F3B56623B5858F4AD0CFEC857" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_495424DE00DC0AA523DCF4AD0CFEA488_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_495424DE00DC0AA523DCF4AD0CFEA488" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_367F258F3B56623B5858F4AD0CFEC857" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_495424DE00DC0AA523DCF4AD0CFEA488" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_EB6E701F68E954EE9759F4AD0CFE6115" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_495424DE00DC0AA523DCF4AD0CFEA488" xlink:to="loc_us-gaap_SubsequentEventMember_EB6E701F68E954EE9759F4AD0CFE6115" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_0ED41876CA9CD41C17A7F4AD0CFE3043" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_03F3760D23069C7CCBE5F4AD0CFA42D0" xlink:to="loc_us-gaap_StatementScenarioAxis_0ED41876CA9CD41C17A7F4AD0CFE3043" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_4016BC6EEE3298666581F4AD0CFE1164_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_0ED41876CA9CD41C17A7F4AD0CFE3043" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_4016BC6EEE3298666581F4AD0CFE1164_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_4016BC6EEE3298666581F4AD0CFE1164" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_0ED41876CA9CD41C17A7F4AD0CFE3043" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_4016BC6EEE3298666581F4AD0CFE1164" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_6CB62F20A7AD4888AE86F4AD0CFFD876" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_4016BC6EEE3298666581F4AD0CFE1164" xlink:to="loc_us-gaap_ScenarioForecastMember_6CB62F20A7AD4888AE86F4AD0CFFD876" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_CD2DBD2163873C9C21A5F4AD0CFF06F3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_CD2DBD2163873C9C21A5F4AD0CFF06F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate_8E92F447B255619CF218F4AD0CFF6C91" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate_8E92F447B255619CF218F4AD0CFF6C91" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_D52334321FF9739F1884F4AD0CFF75E6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_D52334321FF9739F1884F4AD0CFF75E6" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermOfSaleRestrictionPeriodAfterGrant" xlink:label="loc_wgo_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermOfSaleRestrictionPeriodAfterGrant_40D0A355891EDDB9D64FF4AD0D00951C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_wgo_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermOfSaleRestrictionPeriodAfterGrant_40D0A355891EDDB9D64FF4AD0D00951C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_4F8B9A635889E75E9AD2F4AD0D00F20C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_4F8B9A635889E75E9AD2F4AD0D00F20C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_7B2A659B6DF026F003F3F4AD0D00DE95" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_7B2A659B6DF026F003F3F4AD0D00DE95" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_0F2B91910069CE2C4DF2F4AD0D008C00" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_0F2B91910069CE2C4DF2F4AD0D008C00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_A90FB9BDCBD9EECF0CF7F4AD0D008B3A" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_A90FB9BDCBD9EECF0CF7F4AD0D008B3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_AD85E26865AC1D0A9E71F4AD0D01A316" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_AD85E26865AC1D0A9E71F4AD0D01A316" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_6B23B7161127FB64CF8CF4AD0D014491" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_6B23B7161127FB64CF8CF4AD0D014491" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_7734A11D7AC1B02DF633F4AD0D01133A" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_7734A11D7AC1B02DF633F4AD0D01133A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_F0C3825D659C2AEAF48BF4AD0D014884" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_F0C3825D659C2AEAF48BF4AD0D014884" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockGrantedDuringPeriodValueSharebasedCompensationGross" xlink:label="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensationGross_22D136055E888FE5AE08F4AD0D011302" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensationGross_22D136055E888FE5AE08F4AD0D011302" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsClosingPriceOfCommonStockOnGrantDate" xlink:label="loc_wgo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsClosingPriceOfCommonStockOnGrantDate_90594E3EB0DB3C20C343F4AD0D01D8E3" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_wgo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsClosingPriceOfCommonStockOnGrantDate_90594E3EB0DB3C20C343F4AD0D01D8E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_C204EFE4FDBF5B8DB0A9F4AD0D01CB19" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3BD9F69EF2E438C2E3DEF4AD0CFF96A5" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_C204EFE4FDBF5B8DB0A9F4AD0D01CB19" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlansShareAwardsActivityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_793F5D69232504BA29F6F4468953A345" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_62197D57327A7DD19ED6F4468952E4B8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_793F5D69232504BA29F6F4468953A345" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_62197D57327A7DD19ED6F4468952E4B8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_C1AC785D266766E637DBF44689529F74" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_62197D57327A7DD19ED6F4468952E4B8" xlink:to="loc_us-gaap_AwardTypeAxis_C1AC785D266766E637DBF44689529F74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ECE4113F4736CEA80B2FF4468952739A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_C1AC785D266766E637DBF44689529F74" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ECE4113F4736CEA80B2FF4468952739A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ECE4113F4736CEA80B2FF4468952739A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_C1AC785D266766E637DBF44689529F74" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ECE4113F4736CEA80B2FF4468952739A" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_TimebasedshareawardsMember" xlink:label="loc_wgo_TimebasedshareawardsMember_1A6D9322DA16D9F6C6E5F44689530A28" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ECE4113F4736CEA80B2FF4468952739A" xlink:to="loc_wgo_TimebasedshareawardsMember_1A6D9322DA16D9F6C6E5F44689530A28" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_PerformancebasedshareawardMember" xlink:label="loc_wgo_PerformancebasedshareawardMember_F849834117E76D083466F44689533F70" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ECE4113F4736CEA80B2FF4468952739A" xlink:to="loc_wgo_PerformancebasedshareawardMember_F849834117E76D083466F44689533F70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5B902F801092444D184CF4468953EE33" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_793F5D69232504BA29F6F4468953A345" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5B902F801092444D184CF4468953EE33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_B5C84C36A52CD07397E3F4468954D5DD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5B902F801092444D184CF4468953EE33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_B5C84C36A52CD07397E3F4468954D5DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_483DCC96CD03CFF60D39F44689546B66" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5B902F801092444D184CF4468953EE33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_483DCC96CD03CFF60D39F44689546B66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_16503C05E616A689BEF3F4468954F183" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5B902F801092444D184CF4468953EE33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_16503C05E616A689BEF3F4468954F183" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_6E6C372E3C03C96290A1F44689544935" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5B902F801092444D184CF4468953EE33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_6E6C372E3C03C96290A1F44689544935" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_363F1708614C818657F5F44689551E67" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_793F5D69232504BA29F6F4468953A345" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_363F1708614C818657F5F44689551E67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_FF87E914EF7FA7ACCA38F4468955504F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_363F1708614C818657F5F44689551E67" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_FF87E914EF7FA7ACCA38F4468955504F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E2C2AC9408B0A770D29DF44689550C65" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_363F1708614C818657F5F44689551E67" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E2C2AC9408B0A770D29DF44689550C65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_C318EB455A1954EC9450F446895546DD" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_363F1708614C818657F5F44689551E67" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_C318EB455A1954EC9450F446895546DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_F8797F0A512E4641DC04F44689555F51" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_363F1708614C818657F5F44689551E67" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_F8797F0A512E4641DC04F44689555F51" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlansStockOptionActivityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B547CAA1089E833EB584F4468947F255" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8EA1F69614209AC9DF67F44689460490" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B547CAA1089E833EB584F4468947F255" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8EA1F69614209AC9DF67F44689460490" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_01EE42E4EBC0BB956173F44689467D25" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8EA1F69614209AC9DF67F44689460490" xlink:to="loc_us-gaap_AwardTypeAxis_01EE42E4EBC0BB956173F44689467D25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_161375DF54479930546CF4468946C4BC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01EE42E4EBC0BB956173F44689467D25" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_161375DF54479930546CF4468946C4BC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_161375DF54479930546CF4468946C4BC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01EE42E4EBC0BB956173F44689467D25" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_161375DF54479930546CF4468946C4BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_9FA990A58555B487F00EF446894710F8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_161375DF54479930546CF4468946C4BC" xlink:to="loc_us-gaap_EmployeeStockOptionMember_9FA990A58555B487F00EF446894710F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B547CAA1089E833EB584F4468947F255" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3C25C6AD8A8C379510C5F446894886AD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3C25C6AD8A8C379510C5F446894886AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_C015B79F0A6C4AC3B889F4468948BF67" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_C015B79F0A6C4AC3B889F4468948BF67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_88F921BA96BBFB05E413F4468948AA31" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_88F921BA96BBFB05E413F4468948AA31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_E43CD614998EC5AA4B55F4468949177F" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_E43CD614998EC5AA4B55F4468949177F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_00B815272506E4A842A0F4468949422B" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_00B815272506E4A842A0F4468949422B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_C90281B14B34806C3321F446894A76AA" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_C90281B14B34806C3321F446894A76AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_628A95EBBCCBC035DCA1F4468949F4EC" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_628A95EBBCCBC035DCA1F4468949F4EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_E180E14C2953102F3F64F4468949710F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_628A95EBBCCBC035DCA1F4468949F4EC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_E180E14C2953102F3F64F4468949710F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_A10CC9C26ABEEE00CD00F44689498CD1" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_628A95EBBCCBC035DCA1F4468949F4EC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_A10CC9C26ABEEE00CD00F44689498CD1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_C1F5EAE9F9BB067591F9F4468947E145" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_C1F5EAE9F9BB067591F9F4468947E145" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2_50A975A4538A890D3625F446894A54FF" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2_50A975A4538A890D3625F446894A54FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_C5D60FA79512DB111502F44689471613" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_C5D60FA79512DB111502F44689471613" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_1ECA0E1E788436A8B6C1F446894A0128" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_1ECA0E1E788436A8B6C1F446894A0128" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_02480542F977087177E2F446894BDCBC" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_02480542F977087177E2F446894BDCBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_A29B37AB4FD30E9E1F85F446894A4FFD" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_89888A1DE3AF2DF3D483F4468947B448" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_A29B37AB4FD30E9E1F85F446894A4FFD" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlansStockOptionValuationAssumptionsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/StockBasedCompensationPlansTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:href="wgo-20190831.xsd#wgo_NewAccountingPronouncementsandSubsequentEventsLineItems" xlink:label="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:type="locator" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_NewAccountingPronouncementsandSubsequentEventsTable" xlink:label="loc_wgo_NewAccountingPronouncementsandSubsequentEventsTable_6E0BE3AAE5F71E87BB65F4468A3E19FA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_wgo_NewAccountingPronouncementsandSubsequentEventsTable_6E0BE3AAE5F71E87BB65F4468A3E19FA" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_C994AEC5DEE3B19D943CF4468A3F78D1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsTable_6E0BE3AAE5F71E87BB65F4468A3E19FA" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_C994AEC5DEE3B19D943CF4468A3F78D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_AC9A185F6B25FEBC0F65F4468A3F020D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_C994AEC5DEE3B19D943CF4468A3F78D1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_AC9A185F6B25FEBC0F65F4468A3F020D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_AC9A185F6B25FEBC0F65F4468A3F020D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_C994AEC5DEE3B19D943CF4468A3F78D1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_AC9A185F6B25FEBC0F65F4468A3F020D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_1F335754D34368FC81C7F4468A40B1A9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_AC9A185F6B25FEBC0F65F4468A3F020D" xlink:to="loc_us-gaap_SubsequentEventMember_1F335754D34368FC81C7F4468A40B1A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_7B1B4249D9B635FB1E5BF45867104869" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsTable_6E0BE3AAE5F71E87BB65F4468A3E19FA" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_7B1B4249D9B635FB1E5BF45867104869" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9952E87BEFC4B526ACAAF4586729DB90_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7B1B4249D9B635FB1E5BF45867104869" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9952E87BEFC4B526ACAAF4586729DB90_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9952E87BEFC4B526ACAAF4586729DB90" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7B1B4249D9B635FB1E5BF45867104869" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9952E87BEFC4B526ACAAF4586729DB90" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_NewmarMemberMember" xlink:label="loc_wgo_NewmarMemberMember_57FC274BE1AD5CB76AF6F4586777CA4D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9952E87BEFC4B526ACAAF4586729DB90" xlink:to="loc_wgo_NewmarMemberMember_57FC274BE1AD5CB76AF6F4586777CA4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_0073287A6F8A6DF492CCF4468A4044DE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_0073287A6F8A6DF492CCF4468A4044DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_us-gaap_DividendsCommonStockCash_9D6B06C19EBD64A864A8F4468A401545" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_DividendsCommonStockCash_9D6B06C19EBD64A864A8F4468A401545" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_CC2F85E0824BB0B8B5F6F45866D00A69" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_CC2F85E0824BB0B8B5F6F45866D00A69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_B149AE74CC6FB0B23393F45A39355646" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_B149AE74CC6FB0B23393F45A39355646" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:label="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_80FA74BD5A2745ED664BF45EA882E363" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_80FA74BD5A2745ED664BF45EA882E363" xlink:type="arc" />
    <link:loc xlink:href="wgo-20190831.xsd#wgo_Businesscombinationterminationfee" xlink:label="loc_wgo_Businesscombinationterminationfee_2A31554411087E5693FFF45C31CFC8EE" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_wgo_Businesscombinationterminationfee_2A31554411087E5693FFF45C31CFC8EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_FE70E71552062185A143F45CE772106C" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_FE70E71552062185A143F45CE772106C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaap_OperatingLeaseLiability_9648904CB17DBFB87FDDF45F78A9C6C6" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_wgo_NewAccountingPronouncementsandSubsequentEventsLineItems_9BB0869B2605B3F8C0D0F4468A403A06" xlink:to="loc_us-gaap_OperatingLeaseLiability_9648904CB17DBFB87FDDF45F78A9C6C6" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_12F63B445069D8ABD9C1F4468A39F910" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_26D10AFA136C7635F22AF4468A37A3B3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_12F63B445069D8ABD9C1F4468A39F910" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_26D10AFA136C7635F22AF4468A37A3B3" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_662F67B058887AC7E34CF4468A3783A7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_26D10AFA136C7635F22AF4468A37A3B3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_662F67B058887AC7E34CF4468A3783A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_662F67B058887AC7E34CF4468A3783A7" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_662F67B058887AC7E34CF4468A3783A7" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_1EEC19163ADF515021F9F4468A3779D4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3" xlink:to="loc_us-gaap_BuildingMember_1EEC19163ADF515021F9F4468A3779D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_5D7A3D84E2A786503BC8F4468A385D9D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_5D7A3D84E2A786503BC8F4468A385D9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_543E67B417E072AB255BF4468A380794" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_543E67B417E072AB255BF4468A380794" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransportationEquipmentMember" xlink:label="loc_us-gaap_TransportationEquipmentMember_63D5C89C40AAFBE7169AF4468A38ACAF" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_51B511610C7034BFCB11F4468A3783F3" xlink:to="loc_us-gaap_TransportationEquipmentMember_63D5C89C40AAFBE7169AF4468A38ACAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_7BA386F7B785BDF411DCF4468A386793" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_26D10AFA136C7635F22AF4468A37A3B3" xlink:to="loc_srt_RangeAxis_7BA386F7B785BDF411DCF4468A386793" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_8A059BE47AFA28460AA2F4468A384DD8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_7BA386F7B785BDF411DCF4468A386793" xlink:to="loc_srt_RangeMember_8A059BE47AFA28460AA2F4468A384DD8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_8A059BE47AFA28460AA2F4468A384DD8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_7BA386F7B785BDF411DCF4468A386793" xlink:to="loc_srt_RangeMember_8A059BE47AFA28460AA2F4468A384DD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_4F3C2F19C3E68738A151F4468A39F2FD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8A059BE47AFA28460AA2F4468A384DD8" xlink:to="loc_srt_MinimumMember_4F3C2F19C3E68738A151F4468A39F2FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_266FC2DE6D9E56ED83DDF4468A3995E7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8A059BE47AFA28460AA2F4468A384DD8" xlink:to="loc_srt_MaximumMember_266FC2DE6D9E56ED83DDF4468A3995E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_C9F94D1A0F0AF69FFABDF4468A391D5B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_12F63B445069D8ABD9C1F4468A39F910" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_C9F94D1A0F0AF69FFABDF4468A391D5B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/Warranty" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/WarrantyScheduleOfProductWarrantyLiabilityDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.winnebagoind.com/role/WarrantyTables" xlink:type="extended" />
</link:linkbase>
