<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019ed283-6496-7e7c-b038-7bfc67026dbc,g:2e02728b-685e-4203-bf3b-fdb1148862b7-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://shop.lululemon.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="lulu-20260802.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019ed283-6565-740a-83c5-d00f1d1a02a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019ed283-6565-785a-882f-a27d2094004d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019ed283-6565-740a-83c5-d00f1d1a02a7" xlink:to="loc_us-gaap_StatementTable_019ed283-6565-785a-882f-a27d2094004d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019ed283-6565-750d-a7e6-70e4ec9ba77a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019ed283-6565-785a-882f-a27d2094004d" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019ed283-6565-750d-a7e6-70e4ec9ba77a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ed283-6565-750d-a7e6-70e4ec9ba77a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ed283-6565-750d-a7e6-70e4ec9ba77a" xlink:to="loc_us-gaap_EquityComponentDomain_019ed283-6565-750d-a7e6-70e4ec9ba77a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ed283-6565-750d-a7e6-70e4ec9ba77a" xlink:to="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ExchangeableStockMember_019ed283-6565-7951-b9aa-e2e6603fdaaa" xlink:href="lulu-20260802.xsd#lulu_ExchangeableStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:to="loc_lulu_ExchangeableStockMember_019ed283-6565-7951-b9aa-e2e6603fdaaa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_SpecialVotingStockMember_019ed283-6565-74fb-a3a4-33c9000afbbb" xlink:href="lulu-20260802.xsd#lulu_SpecialVotingStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:to="loc_lulu_SpecialVotingStockMember_019ed283-6565-74fb-a3a4-33c9000afbbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019ed283-6565-7a88-9c18-5fa626441ad3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:to="loc_us-gaap_CommonStockMember_019ed283-6565-7a88-9c18-5fa626441ad3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019ed283-6565-7bf5-80f3-9352d2c79584" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019ed283-6565-7bf5-80f3-9352d2c79584" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019ed283-6565-7be1-8675-d2764d247d06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:to="loc_us-gaap_RetainedEarningsMember_019ed283-6565-7be1-8675-d2764d247d06" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019ed283-6565-704c-8146-ca9ced702637" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ed283-6565-767c-b4c0-6bf1d45e46ce" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019ed283-6565-704c-8146-ca9ced702637" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019ed283-6565-740a-83c5-d00f1d1a02a7" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019ed283-6565-7733-94d3-6756a0666672" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_CommonStockSharesIssued_019ed283-6565-7733-94d3-6756a0666672" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019ed283-6565-7b33-85b8-b9b131bdf651" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_StockholdersEquity_019ed283-6565-7b33-85b8-b9b131bdf651" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019ed283-6565-723f-9d3b-38e7ca327e24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_NetIncomeLoss_019ed283-6565-723f-9d3b-38e7ca327e24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019ed283-6565-7f82-849e-713e2c5766ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019ed283-6565-7f82-849e-713e2c5766ad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019ed283-6565-7bac-9d3a-1d5a74c2e605" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019ed283-6565-7bac-9d3a-1d5a74c2e605" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019ed283-6565-7583-b831-594cae3c2bc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019ed283-6565-7583-b831-594cae3c2bc8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019ed283-6565-7d91-9448-b4c59e89606e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019ed283-6565-7d91-9448-b4c59e89606e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019ed283-6565-7ada-8a71-2a8d9e3c9348" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019ed283-6565-7ada-8a71-2a8d9e3c9348" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019ed283-6565-7bab-ae0e-d60219680ce8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019ed283-6565-7bab-ae0e-d60219680ce8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019ed283-6565-7722-833e-16b95011c37c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019ed283-6565-7722-833e-16b95011c37c" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_019ed283-6565-73be-8481-68f8e141dcf7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ed283-6565-7f73-838a-f93997cd06a8" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_019ed283-6565-73be-8481-68f8e141dcf7" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019ed283-6565-7f05-98c6-6c1426faa0fb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019ed283-6565-7aa1-bb57-6343fac64216" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/NetRevenueDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#NetRevenueDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/NetRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019ed283-6640-725c-b357-59587236a48d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019ed283-6640-7102-8149-04f82fa2bd51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019ed283-6640-725c-b357-59587236a48d" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019ed283-6640-7102-8149-04f82fa2bd51" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019ed283-6640-7ead-9938-0f4a475629d3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019ed283-6640-7102-8149-04f82fa2bd51" xlink:to="loc_srt_StatementGeographicalAxis_019ed283-6640-7ead-9938-0f4a475629d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019ed283-6640-7ead-9938-0f4a475629d3_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019ed283-6640-7ead-9938-0f4a475629d3" xlink:to="loc_srt_SegmentGeographicalDomain_019ed283-6640-7ead-9938-0f4a475629d3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019ed283-6640-7ead-9938-0f4a475629d3" xlink:to="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AmericasMember_019ed283-6640-7f1c-9e1b-35f958049882" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_AmericasMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:to="loc_srt_AmericasMember_019ed283-6640-7f1c-9e1b-35f958049882" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019ed283-6640-7235-b8cc-5c215982bcba" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_AmericasMember_019ed283-6640-7f1c-9e1b-35f958049882" xlink:to="loc_country_US_019ed283-6640-7235-b8cc-5c215982bcba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CA_019ed283-6640-758b-8517-9d021623e918" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_CA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_AmericasMember_019ed283-6640-7f1c-9e1b-35f958049882" xlink:to="loc_country_CA_019ed283-6640-758b-8517-9d021623e918" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_019ed283-6640-7a36-9e1e-b2bace2ba679" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_AmericasMember_019ed283-6640-7f1c-9e1b-35f958049882" xlink:to="loc_country_MX_019ed283-6640-7a36-9e1e-b2bace2ba679" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ChinaMainlandMember_019ed283-6640-7205-a37b-8e77f127a141" xlink:href="lulu-20260802.xsd#lulu_ChinaMainlandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:to="loc_lulu_ChinaMainlandMember_019ed283-6640-7205-a37b-8e77f127a141" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_HongKongSARTaiwanAndMacauSARMember_019ed283-6640-7a77-b9a5-1b8ba44535a8" xlink:href="lulu-20260802.xsd#lulu_HongKongSARTaiwanAndMacauSARMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:to="loc_lulu_HongKongSARTaiwanAndMacauSARMember_019ed283-6640-7a77-b9a5-1b8ba44535a8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_019ed283-6640-7d29-8944-baec75848d61" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:to="loc_country_CN_019ed283-6640-7d29-8944-baec75848d61" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_RestOfWorldMember_019ed283-6640-77dc-bab6-26b402a8221c" xlink:href="lulu-20260802.xsd#lulu_RestOfWorldMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019ed283-6640-743b-bb24-7974041099a1" xlink:to="loc_lulu_RestOfWorldMember_019ed283-6640-77dc-bab6-26b402a8221c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019ed283-6640-73c9-8b14-b36d803c50c9" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019ed283-6640-7102-8149-04f82fa2bd51" xlink:to="loc_srt_ProductOrServiceAxis_019ed283-6640-73c9-8b14-b36d803c50c9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ed283-6640-73c9-8b14-b36d803c50c9_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019ed283-6640-73c9-8b14-b36d803c50c9" xlink:to="loc_srt_ProductsAndServicesDomain_019ed283-6640-73c9-8b14-b36d803c50c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ed283-6640-7067-a6b3-4e918d27a230" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019ed283-6640-73c9-8b14-b36d803c50c9" xlink:to="loc_srt_ProductsAndServicesDomain_019ed283-6640-7067-a6b3-4e918d27a230" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_WomensApparelMember_019ed283-6640-7920-8aa6-31f7757e657b" xlink:href="lulu-20260802.xsd#lulu_WomensApparelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ed283-6640-7067-a6b3-4e918d27a230" xlink:to="loc_lulu_WomensApparelMember_019ed283-6640-7920-8aa6-31f7757e657b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_MensApparelMember_019ed283-6640-7ff7-8912-1ce9fe872d13" xlink:href="lulu-20260802.xsd#lulu_MensApparelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ed283-6640-7067-a6b3-4e918d27a230" xlink:to="loc_lulu_MensApparelMember_019ed283-6640-7ff7-8912-1ce9fe872d13" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_AccessoriesAndOtherCategoriesMember_019ed283-6640-7d65-8479-b0332d62acf0" xlink:href="lulu-20260802.xsd#lulu_AccessoriesAndOtherCategoriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ed283-6640-7067-a6b3-4e918d27a230" xlink:to="loc_lulu_AccessoriesAndOtherCategoriesMember_019ed283-6640-7d65-8479-b0332d62acf0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ed283-6640-72e3-93bc-2c39d8cfcb1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019ed283-6640-7102-8149-04f82fa2bd51" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ed283-6640-72e3-93bc-2c39d8cfcb1b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-72e3-93bc-2c39d8cfcb1b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ed283-6640-72e3-93bc-2c39d8cfcb1b" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-72e3-93bc-2c39d8cfcb1b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-7ad7-bc7e-b898f0e3cd1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ed283-6640-72e3-93bc-2c39d8cfcb1b" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-7ad7-bc7e-b898f0e3cd1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_CompanyOperatedStoresMember_019ed283-6640-7ea7-9663-894bff74cf19" xlink:href="lulu-20260802.xsd#lulu_CompanyOperatedStoresMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-7ad7-bc7e-b898f0e3cd1a" xlink:to="loc_lulu_CompanyOperatedStoresMember_019ed283-6640-7ea7-9663-894bff74cf19" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ECommerceMember_019ed283-6640-7d9a-9468-cc1ecf611639" xlink:href="lulu-20260802.xsd#lulu_ECommerceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-7ad7-bc7e-b898f0e3cd1a" xlink:to="loc_lulu_ECommerceMember_019ed283-6640-7d9a-9468-cc1ecf611639" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_OtherChannelsMember_019ed283-6640-7573-9dd1-43a4c5c1c22f" xlink:href="lulu-20260802.xsd#lulu_OtherChannelsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ed283-6640-7ad7-bc7e-b898f0e3cd1a" xlink:to="loc_lulu_OtherChannelsMember_019ed283-6640-7573-9dd1-43a4c5c1c22f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ed283-6640-7769-a469-a9e0936bf567" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019ed283-6640-725c-b357-59587236a48d" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ed283-6640-7769-a469-a9e0936bf567" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/RevolvingCreditFacilitiesDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#RevolvingCreditFacilitiesDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/RevolvingCreditFacilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019ed283-6565-7403-8df6-4af257769503" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019ed283-6565-7403-8df6-4af257769503" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019ed283-6565-7a51-9144-4938dca17b0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019ed283-6565-7403-8df6-4af257769503" xlink:to="loc_us-gaap_CreditFacilityAxis_019ed283-6565-7a51-9144-4938dca17b0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019ed283-6565-7a51-9144-4938dca17b0a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019ed283-6565-7a51-9144-4938dca17b0a" xlink:to="loc_us-gaap_CreditFacilityDomain_019ed283-6565-7a51-9144-4938dca17b0a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019ed283-6565-76ec-98b1-efbbffddcaa8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019ed283-6565-7a51-9144-4938dca17b0a" xlink:to="loc_us-gaap_CreditFacilityDomain_019ed283-6565-76ec-98b1-efbbffddcaa8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019ed283-6565-79fa-a08f-bb34a3072a22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019ed283-6565-76ec-98b1-efbbffddcaa8" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019ed283-6565-79fa-a08f-bb34a3072a22" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_019ed283-6565-75f6-b770-a181ad7d4af3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019ed283-6565-76ec-98b1-efbbffddcaa8" xlink:to="loc_us-gaap_LetterOfCreditMember_019ed283-6565-75f6-b770-a181ad7d4af3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019ed283-6565-7a6e-8ac5-8aaa379bcea9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019ed283-6565-7403-8df6-4af257769503" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019ed283-6565-7a6e-8ac5-8aaa379bcea9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019ed283-6565-7a6e-8ac5-8aaa379bcea9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019ed283-6565-7a6e-8ac5-8aaa379bcea9" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019ed283-6565-7a6e-8ac5-8aaa379bcea9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019ed283-6565-757a-91d8-bb57a3693de1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019ed283-6565-7a6e-8ac5-8aaa379bcea9" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019ed283-6565-757a-91d8-bb57a3693de1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019ed283-6565-7b42-90a7-4106b65317d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019ed283-6565-757a-91d8-bb57a3693de1" xlink:to="loc_us-gaap_LineOfCreditMember_019ed283-6565-7b42-90a7-4106b65317d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019ed283-6565-7f2a-bc73-132967888e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019ed283-6565-7f2a-bc73-132967888e9f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019ed283-6565-7090-a725-fcf683e1d2ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_us-gaap_DebtInstrumentTerm_019ed283-6565-7090-a725-fcf683e1d2ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_LineOfCreditFacilityNumberOfExtensionTerms_019ed283-6565-71a4-aaad-219c97cdc0f0" xlink:href="lulu-20260802.xsd#lulu_LineOfCreditFacilityNumberOfExtensionTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_lulu_LineOfCreditFacilityNumberOfExtensionTerms_019ed283-6565-71a4-aaad-219c97cdc0f0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_LineOfCreditFacilityExtensionTermPeriod_019ed283-6565-7e2d-8141-cddc6a9dd003" xlink:href="lulu-20260802.xsd#lulu_LineOfCreditFacilityExtensionTermPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_lulu_LineOfCreditFacilityExtensionTermPeriod_019ed283-6565-7e2d-8141-cddc6a9dd003" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_LineOfCreditFacilityAccordionFeatureIncreaseLimit_019ed283-6565-71f6-b742-269f477e913f" xlink:href="lulu-20260802.xsd#lulu_LineOfCreditFacilityAccordionFeatureIncreaseLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_lulu_LineOfCreditFacilityAccordionFeatureIncreaseLimit_019ed283-6565-71f6-b742-269f477e913f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherBorrowings_019ed283-6565-7ed8-a562-b456f8de8997" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_us-gaap_OtherBorrowings_019ed283-6565-7ed8-a562-b456f8de8997" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_019ed283-6565-7837-be90-3ce934573677" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_019ed283-6565-7837-be90-3ce934573677" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019ed283-6565-7799-ab5f-173d54045d68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ed283-6565-7adc-96b6-18665e81b157" xlink:to="loc_us-gaap_ShortTermBorrowings_019ed283-6565-7799-ab5f-173d54045d68" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/StockBasedCompensationandBenefitPlansNarrativeDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#StockBasedCompensationandBenefitPlansNarrativeDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/StockBasedCompensationandBenefitPlansNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6565-76ef-91d9-436d9df0e96d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6565-76ef-91d9-436d9df0e96d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019ed283-6565-722b-8a1f-3b3c52c6ba79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6565-76ef-91d9-436d9df0e96d" xlink:to="loc_us-gaap_AwardTypeAxis_019ed283-6565-722b-8a1f-3b3c52c6ba79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6565-722b-8a1f-3b3c52c6ba79_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019ed283-6565-722b-8a1f-3b3c52c6ba79" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6565-722b-8a1f-3b3c52c6ba79_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6565-750c-aeb1-6d1f6169a007" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019ed283-6565-722b-8a1f-3b3c52c6ba79" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6565-750c-aeb1-6d1f6169a007" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_PerformanceBasedRestrictedStockUnitsMember_019ed283-6565-75d0-a0ec-f16499960fe4" xlink:href="lulu-20260802.xsd#lulu_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6565-750c-aeb1-6d1f6169a007" xlink:to="loc_lulu_PerformanceBasedRestrictedStockUnitsMember_019ed283-6565-75d0-a0ec-f16499960fe4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_019ed283-6640-7a1f-8884-130ccbd66e78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6565-750c-aeb1-6d1f6169a007" xlink:to="loc_us-gaap_EmployeeStockMember_019ed283-6640-7a1f-8884-130ccbd66e78" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019ed283-6640-7924-9197-46f797803ad6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6565-76ef-91d9-436d9df0e96d" xlink:to="loc_srt_RangeAxis_019ed283-6640-7924-9197-46f797803ad6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ed283-6640-7924-9197-46f797803ad6_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019ed283-6640-7924-9197-46f797803ad6" xlink:to="loc_srt_RangeMember_019ed283-6640-7924-9197-46f797803ad6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ed283-6640-732b-986a-401309a0997f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019ed283-6640-7924-9197-46f797803ad6" xlink:to="loc_srt_RangeMember_019ed283-6640-732b-986a-401309a0997f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019ed283-6640-79c4-907e-a1e0b3d8acac" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ed283-6640-732b-986a-401309a0997f" xlink:to="loc_srt_MinimumMember_019ed283-6640-79c4-907e-a1e0b3d8acac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019ed283-6640-7ffb-bfb3-08a5ea85f64e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ed283-6640-732b-986a-401309a0997f" xlink:to="loc_srt_MaximumMember_019ed283-6640-7ffb-bfb3-08a5ea85f64e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019ed283-6640-710c-8638-2465e867c46a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019ed283-6640-710c-8638-2465e867c46a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019ed283-6640-7186-a7fc-07a89ff06c05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019ed283-6640-7186-a7fc-07a89ff06c05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019ed283-6640-78a2-9e4b-69d2ed48f045" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019ed283-6640-78a2-9e4b-69d2ed48f045" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ShareBasedCompensationArrangementByShareBasedPaymentAwardGranteeEntitledRightToReceive_019ed283-6640-7a76-98af-b929428f6a27" xlink:href="lulu-20260802.xsd#lulu_ShareBasedCompensationArrangementByShareBasedPaymentAwardGranteeEntitledRightToReceive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_lulu_ShareBasedCompensationArrangementByShareBasedPaymentAwardGranteeEntitledRightToReceive_019ed283-6640-7a76-98af-b929428f6a27" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalShareholderReturnConversionRatio_019ed283-6640-7d2a-9953-f542391738c2" xlink:href="lulu-20260802.xsd#lulu_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalShareholderReturnConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_lulu_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalShareholderReturnConversionRatio_019ed283-6640-7d2a-9953-f542391738c2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ShareBasedCompensationArrangementByShareBasedCompensationAwardCompanyMatchContributionEmployeeStockPurchasePlanPercent_019ed283-6640-757b-9187-91ed0cca0ed1" xlink:href="lulu-20260802.xsd#lulu_ShareBasedCompensationArrangementByShareBasedCompensationAwardCompanyMatchContributionEmployeeStockPurchasePlanPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_lulu_ShareBasedCompensationArrangementByShareBasedCompensationAwardCompanyMatchContributionEmployeeStockPurchasePlanPercent_019ed283-6640-757b-9187-91ed0cca0ed1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019ed283-6640-715b-98a6-16002cabcc53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019ed283-6640-715b-98a6-16002cabcc53" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019ed283-6640-70e9-9b4a-c456e0efe5ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019ed283-6640-70e9-9b4a-c456e0efe5ed" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_EmployeeStockPurchasePlanRemainingNumberOfSharesAuthorizedToBeRepurchased_019ed283-6640-74b0-8c52-8004e7b41e01" xlink:href="lulu-20260802.xsd#lulu_EmployeeStockPurchasePlanRemainingNumberOfSharesAuthorizedToBeRepurchased"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_lulu_EmployeeStockPurchasePlanRemainingNumberOfSharesAuthorizedToBeRepurchased_019ed283-6640-74b0-8c52-8004e7b41e01" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019ed283-6640-72c7-a43b-ee8c86220296" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019ed283-6640-72c7-a43b-ee8c86220296" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_DefinedContributionPlanEmployersMatchingContributionVestingPeriod_019ed283-6640-75cb-8584-632a82081278" xlink:href="lulu-20260802.xsd#lulu_DefinedContributionPlanEmployersMatchingContributionVestingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_lulu_DefinedContributionPlanEmployersMatchingContributionVestingPeriod_019ed283-6640-75cb-8584-632a82081278" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_019ed283-6640-7fc1-be8b-0dc344ba5a26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7938-b90e-aa1673cf5c49" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_019ed283-6640-7fc1-be8b-0dc344ba5a26" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/StockBasedCompensationandBenefitPlansScheduleofCompanysStockOptionPerformanceShareUnitandRestrictedShareActivityDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#StockBasedCompensationandBenefitPlansScheduleofCompanysStockOptionPerformanceShareUnitandRestrictedShareActivityDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/StockBasedCompensationandBenefitPlansScheduleofCompanysStockOptionPerformanceShareUnitandRestrictedShareActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6640-7afe-bd2d-4363586ed7de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6640-7afe-bd2d-4363586ed7de" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019ed283-6640-7548-aa6d-bdd0ab6aba87" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6640-7afe-bd2d-4363586ed7de" xlink:to="loc_us-gaap_AwardTypeAxis_019ed283-6640-7548-aa6d-bdd0ab6aba87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7548-aa6d-bdd0ab6aba87_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019ed283-6640-7548-aa6d-bdd0ab6aba87" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7548-aa6d-bdd0ab6aba87_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7c9b-92d5-e8fea28e54b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019ed283-6640-7548-aa6d-bdd0ab6aba87" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7c9b-92d5-e8fea28e54b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019ed283-6640-7ed7-a47f-1acb48b2a4ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7c9b-92d5-e8fea28e54b2" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019ed283-6640-7ed7-a47f-1acb48b2a4ed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_PerformanceBasedRestrictedStockUnitsMember_019ed283-6640-792a-be3a-f954454605ef" xlink:href="lulu-20260802.xsd#lulu_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7c9b-92d5-e8fea28e54b2" xlink:to="loc_lulu_PerformanceBasedRestrictedStockUnitsMember_019ed283-6640-792a-be3a-f954454605ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019ed283-6640-7b2f-97fd-07cd0713eb11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7c9b-92d5-e8fea28e54b2" xlink:to="loc_us-gaap_RestrictedStockMember_019ed283-6640-7b2f-97fd-07cd0713eb11" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019ed283-6640-741e-813b-177437253265" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7c9b-92d5-e8fea28e54b2" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019ed283-6640-741e-813b-177437253265" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019ed283-6640-74d2-953c-2d352a470ba9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019ed283-6640-74d2-953c-2d352a470ba9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019ed283-6640-76c6-9d08-4761e23b63f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019ed283-6640-74d2-953c-2d352a470ba9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019ed283-6640-76c6-9d08-4761e23b63f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_019ed283-6640-7458-989f-aeccff07f69f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019ed283-6640-74d2-953c-2d352a470ba9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_019ed283-6640-7458-989f-aeccff07f69f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019ed283-6640-7719-8a88-11d4c6cc60fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019ed283-6640-74d2-953c-2d352a470ba9" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019ed283-6640-7719-8a88-11d4c6cc60fe" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_019ed283-6640-7d8e-8fa6-f82c9ab37f0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019ed283-6640-74d2-953c-2d352a470ba9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_019ed283-6640-7d8e-8fa6-f82c9ab37f0c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019ed283-6640-7ee1-a360-ec5ec14a4a13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_019ed283-6640-7fab-bdea-0a753dfe2cdc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_019ed283-6640-7fab-bdea-0a753dfe2cdc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019ed283-6640-785a-9849-5145fd5534c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019ed283-6640-785a-9849-5145fd5534c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_019ed283-6640-7a81-a5ec-aa4970c63ea6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019ed283-6640-785a-9849-5145fd5534c8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_019ed283-6640-7a81-a5ec-aa4970c63ea6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_019ed283-6640-7896-b956-5044e5b6e6ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019ed283-6640-785a-9849-5145fd5534c8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_019ed283-6640-7896-b956-5044e5b6e6ef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_019ed283-6640-7698-92a1-d05322f3b330" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019ed283-6640-785a-9849-5145fd5534c8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_019ed283-6640-7698-92a1-d05322f3b330" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_019ed283-6640-7c4a-9a3a-f1f2b3fcd28a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019ed283-6640-785a-9849-5145fd5534c8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_019ed283-6640-7c4a-9a3a-f1f2b3fcd28a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_019ed283-6640-72fb-9941-b8ee47c1f3cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_019ed283-6640-7d85-953d-e6914bfc3994" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_019ed283-6640-7d85-953d-e6914bfc3994" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ed283-6640-7d1e-a79a-3777f5e9c78d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ed283-6640-7d1e-a79a-3777f5e9c78d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ed283-6640-7826-b6bf-795321d232d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ed283-6640-7d1e-a79a-3777f5e9c78d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ed283-6640-7826-b6bf-795321d232d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019ed283-6640-78a5-a84e-06f6293df7d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ed283-6640-7d1e-a79a-3777f5e9c78d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019ed283-6640-78a5-a84e-06f6293df7d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019ed283-6640-75c2-afcf-49cc54e1ad9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ed283-6640-7d1e-a79a-3777f5e9c78d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019ed283-6640-75c2-afcf-49cc54e1ad9c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019ed283-6640-7506-aa6e-6ab7afa4e941" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ed283-6640-7d1e-a79a-3777f5e9c78d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019ed283-6640-7506-aa6e-6ab7afa4e941" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ed283-6640-7ef3-afd8-0cecca84a3a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ed283-6640-77bc-a946-13fc89fd5d72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-7397-b1c0-46c5982461d1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ed283-6640-77bc-a946-13fc89fd5d72" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ed283-6640-74e3-8a3a-48431fb1b739" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ed283-6640-77bc-a946-13fc89fd5d72" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ed283-6640-74e3-8a3a-48431fb1b739" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019ed283-6640-7909-b0a1-f1b4607abbdf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ed283-6640-77bc-a946-13fc89fd5d72" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019ed283-6640-7909-b0a1-f1b4607abbdf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019ed283-6640-7663-846a-fe1961307d81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ed283-6640-77bc-a946-13fc89fd5d72" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019ed283-6640-7663-846a-fe1961307d81" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019ed283-6640-72e8-8774-84b2ba072f75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ed283-6640-77bc-a946-13fc89fd5d72" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019ed283-6640-72e8-8774-84b2ba072f75" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ed283-6640-731e-9662-b63a7a132815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/StockBasedCompensationandBenefitPlansScheduleofFairValueAssumptionsDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#StockBasedCompensationandBenefitPlansScheduleofFairValueAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/StockBasedCompensationandBenefitPlansScheduleofFairValueAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-716d-9970-4f58159edb44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6640-7138-aaf8-2897e5e80963" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-716d-9970-4f58159edb44" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6640-7138-aaf8-2897e5e80963" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019ed283-6640-7606-9b4b-aaa0c4bdd01c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ed283-6640-7138-aaf8-2897e5e80963" xlink:to="loc_us-gaap_AwardTypeAxis_019ed283-6640-7606-9b4b-aaa0c4bdd01c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7606-9b4b-aaa0c4bdd01c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019ed283-6640-7606-9b4b-aaa0c4bdd01c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-7606-9b4b-aaa0c4bdd01c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-755e-96f0-d86b65875f49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019ed283-6640-7606-9b4b-aaa0c4bdd01c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-755e-96f0-d86b65875f49" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019ed283-6640-733f-bd0d-7827594810ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-755e-96f0-d86b65875f49" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019ed283-6640-733f-bd0d-7827594810ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PhantomShareUnitsPSUsMember_019ed283-6640-739d-99ae-413b21daff61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PhantomShareUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ed283-6640-755e-96f0-d86b65875f49" xlink:to="loc_us-gaap_PhantomShareUnitsPSUsMember_019ed283-6640-739d-99ae-413b21daff61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_019ed283-6640-7d3b-a381-09e24efb6df7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-716d-9970-4f58159edb44" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_019ed283-6640-7d3b-a381-09e24efb6df7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019ed283-6640-7415-8235-6cbbcad9c8c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-716d-9970-4f58159edb44" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019ed283-6640-7415-8235-6cbbcad9c8c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019ed283-6640-774d-aae2-73f5db93a27d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-716d-9970-4f58159edb44" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019ed283-6640-774d-aae2-73f5db93a27d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_019ed283-6640-7eab-bada-7b213324c3bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ed283-6640-716d-9970-4f58159edb44" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_019ed283-6640-7eab-bada-7b213324c3bd" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/FairValueMeasurementDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#FairValueMeasurementDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/FairValueMeasurementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ed283-6640-7aa3-90d6-0a03ab5326f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ed283-6640-7fd0-ac6e-56d41e76344a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ed283-6640-7aa3-90d6-0a03ab5326f6" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ed283-6640-7fd0-ac6e-56d41e76344a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ed283-6640-770f-9fe4-9a54445c421d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ed283-6640-7fd0-ac6e-56d41e76344a" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ed283-6640-770f-9fe4-9a54445c421d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-770f-9fe4-9a54445c421d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ed283-6640-770f-9fe4-9a54445c421d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-770f-9fe4-9a54445c421d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-7eb2-a4ce-5bc181817ca9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ed283-6640-770f-9fe4-9a54445c421d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-7eb2-a4ce-5bc181817ca9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019ed283-6640-71b6-ab9b-6832c3da0aad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-7eb2-a4ce-5bc181817ca9" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019ed283-6640-71b6-ab9b-6832c3da0aad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019ed283-6640-7def-a072-60f2fb66612b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-7eb2-a4ce-5bc181817ca9" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019ed283-6640-7def-a072-60f2fb66612b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019ed283-6640-7f46-affc-b724bf2c7747" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ed283-6640-7eb2-a4ce-5bc181817ca9" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019ed283-6640-7f46-affc-b724bf2c7747" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_01a03671-44f3-789e-9291-48cc482381c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ed283-6640-7fd0-ac6e-56d41e76344a" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_01a03671-44f3-789e-9291-48cc482381c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_01a03671-44f3-789e-9291-48cc482381c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_01a03671-44f3-789e-9291-48cc482381c5" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_01a03671-44f3-789e-9291-48cc482381c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_01a03671-44f3-74e0-acb1-90122820ebcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_01a03671-44f3-789e-9291-48cc482381c5" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_01a03671-44f3-74e0-acb1-90122820ebcc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_01a03673-945b-7a2a-839f-5f5bdc71d69c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_01a03671-44f3-74e0-acb1-90122820ebcc" xlink:to="loc_us-gaap_MoneyMarketFundsMember_01a03673-945b-7a2a-839f-5f5bdc71d69c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BankTimeDepositsMember_01a03671-44f3-7967-b286-e4846ccf4e3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BankTimeDepositsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_01a03671-44f3-74e0-acb1-90122820ebcc" xlink:to="loc_us-gaap_BankTimeDepositsMember_01a03671-44f3-7967-b286-e4846ccf4e3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019ed283-6640-71f8-a6cb-443669dc009a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ed283-6640-7aa3-90d6-0a03ab5326f6" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019ed283-6640-71f8-a6cb-443669dc009a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019ed283-6640-767b-a214-17ae344214aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ed283-6640-7aa3-90d6-0a03ab5326f6" xlink:to="loc_us-gaap_DerivativeAssets_019ed283-6640-767b-a214-17ae344214aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration_019ed283-6640-743e-8068-4f524cb8a292" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeAssets_019ed283-6640-767b-a214-17ae344214aa" xlink:to="loc_us-gaap_DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration_019ed283-6640-743e-8068-4f524cb8a292" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019ed283-6640-7807-bc39-f273a10a1aef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ed283-6640-7aa3-90d6-0a03ab5326f6" xlink:to="loc_us-gaap_DerivativeLiabilities_019ed283-6640-7807-bc39-f273a10a1aef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration_019ed283-6640-794a-af43-c6f34fe57f4a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLiabilities_019ed283-6640-7807-bc39-f273a10a1aef" xlink:to="loc_us-gaap_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration_019ed283-6640-794a-af43-c6f34fe57f4a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/DerivativeFinancialInstrumentsScheduleofForwardCurrencyContractsDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#DerivativeFinancialInstrumentsScheduleofForwardCurrencyContractsDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/DerivativeFinancialInstrumentsScheduleofForwardCurrencyContractsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativesFairValueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_019ed283-6640-725b-8130-2531a814ae80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_019ed283-6640-725b-8130-2531a814ae80" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019ed283-6640-70e2-8aba-278473c157f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_019ed283-6640-725b-8130-2531a814ae80" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019ed283-6640-70e2-8aba-278473c157f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019ed283-6640-70e2-8aba-278473c157f2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019ed283-6640-70e2-8aba-278473c157f2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019ed283-6640-70e2-8aba-278473c157f2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019ed283-6640-7313-98a3-52ae55a4219c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019ed283-6640-70e2-8aba-278473c157f2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019ed283-6640-7313-98a3-52ae55a4219c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019ed283-6640-7f69-b9b3-10237db323b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019ed283-6640-7313-98a3-52ae55a4219c" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019ed283-6640-7f69-b9b3-10237db323b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019ed283-6640-77e5-b902-7e812fd3a6f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_019ed283-6640-725b-8130-2531a814ae80" xlink:to="loc_us-gaap_HedgingDesignationAxis_019ed283-6640-77e5-b902-7e812fd3a6f1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019ed283-6640-77e5-b902-7e812fd3a6f1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019ed283-6640-77e5-b902-7e812fd3a6f1" xlink:to="loc_us-gaap_HedgingDesignationDomain_019ed283-6640-77e5-b902-7e812fd3a6f1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019ed283-6640-7fb0-8ee8-8d2b50633ffb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019ed283-6640-77e5-b902-7e812fd3a6f1" xlink:to="loc_us-gaap_HedgingDesignationDomain_019ed283-6640-7fb0-8ee8-8d2b50633ffb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019ed283-6640-7ae1-a24e-362839374c6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019ed283-6640-7fb0-8ee8-8d2b50633ffb" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019ed283-6640-7ae1-a24e-362839374c6f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019ed283-6640-7732-a230-cfa517daa716" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019ed283-6640-7fb0-8ee8-8d2b50633ffb" xlink:to="loc_us-gaap_NondesignatedMember_019ed283-6640-7732-a230-cfa517daa716" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019ed283-6640-772e-915f-b2f62d3b8aba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019ed283-6640-772e-915f-b2f62d3b8aba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019ed283-6640-7095-84ee-4f702e3b6e80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019ed283-6640-7095-84ee-4f702e3b6e80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019ed283-6640-7e97-a590-2efe13d9cf5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019ed283-6640-7e97-a590-2efe13d9cf5c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SummaryOfDerivativeInstrumentsByHedgeDesignationAbstract_019ed283-6640-7cd7-b423-9ef5cf5b6d8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SummaryOfDerivativeInstrumentsByHedgeDesignationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:to="loc_us-gaap_SummaryOfDerivativeInstrumentsByHedgeDesignationAbstract_019ed283-6640-7cd7-b423-9ef5cf5b6d8b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_019ed283-6640-7e95-b31e-54db901ca466" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SummaryOfDerivativeInstrumentsByHedgeDesignationAbstract_019ed283-6640-7cd7-b423-9ef5cf5b6d8b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_019ed283-6640-7e95-b31e-54db901ca466" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_019ed283-6640-7271-81f8-56921ff9abec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_019ed283-6640-712f-9fd5-f0db97c88de1" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_019ed283-6640-7271-81f8-56921ff9abec" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_019ed283-6640-7c29-8743-c5042c6c2845" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_019ed283-6640-7271-81f8-56921ff9abec" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_019ed283-6640-7c29-8743-c5042c6c2845" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/EarningsPerShareNarrativeDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#EarningsPerShareNarrativeDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/EarningsPerShareNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019ed283-6640-71ad-9033-6780471e7b3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_us-gaap_SubsequentEventTable_019ed283-6640-71ad-9033-6780471e7b3a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019ed283-6640-7722-a97a-9800ad217ec1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019ed283-6640-71ad-9033-6780471e7b3a" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019ed283-6640-7722-a97a-9800ad217ec1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019ed283-6640-7722-a97a-9800ad217ec1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019ed283-6640-7722-a97a-9800ad217ec1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019ed283-6640-7722-a97a-9800ad217ec1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019ed283-6640-7e75-882c-f33d340b9a70" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019ed283-6640-7722-a97a-9800ad217ec1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019ed283-6640-7e75-882c-f33d340b9a70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019ed283-6640-7d7e-87ec-84d2c4607d5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019ed283-6640-7e75-882c-f33d340b9a70" xlink:to="loc_us-gaap_SubsequentEventMember_019ed283-6640-7d7e-87ec-84d2c4607d5d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019ed283-6640-7b0e-b6d8-831862b5b5f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019ed283-6640-7b0e-b6d8-831862b5b5f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019ed283-6640-7b1a-bf2d-88af5fe33ad3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019ed283-6640-7b1a-bf2d-88af5fe33ad3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ShareRepurchaseProgramAuthorizedIncreaseAmount_019ed283-6640-70bf-9b7f-514a2e132ccf" xlink:href="lulu-20260802.xsd#lulu_ShareRepurchaseProgramAuthorizedIncreaseAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_lulu_ShareRepurchaseProgramAuthorizedIncreaseAmount_019ed283-6640-70bf-9b7f-514a2e132ccf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019ed283-6640-7637-9d6a-ec9e491349c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019ed283-6640-7637-9d6a-ec9e491349c3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019ed283-6640-77c5-b58c-1fd1ffbe5b72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019ed283-6640-77c5-b58c-1fd1ffbe5b72" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_019ed283-6640-7376-a537-f5a9be53c438" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019ed283-6640-726a-bb16-82e3a939d259" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_019ed283-6640-7376-a537-f5a9be53c438" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/SegmentedInformationDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#SegmentedInformationDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/SegmentedInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ed283-6640-7ac9-8bad-57293159ed16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ed283-6640-7ac9-8bad-57293159ed16" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019ed283-6640-746a-a8fe-1f3886f75261" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ed283-6640-7ac9-8bad-57293159ed16" xlink:to="loc_srt_ConsolidationItemsAxis_019ed283-6640-746a-a8fe-1f3886f75261" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019ed283-6640-746a-a8fe-1f3886f75261_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019ed283-6640-746a-a8fe-1f3886f75261" xlink:to="loc_srt_ConsolidationItemsDomain_019ed283-6640-746a-a8fe-1f3886f75261_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019ed283-6640-7d32-9613-20c559f4ada2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019ed283-6640-746a-a8fe-1f3886f75261" xlink:to="loc_srt_ConsolidationItemsDomain_019ed283-6640-7d32-9613-20c559f4ada2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019ed283-6640-7c55-b452-fdfa2c07dbf2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019ed283-6640-7d32-9613-20c559f4ada2" xlink:to="loc_us-gaap_OperatingSegmentsMember_019ed283-6640-7c55-b452-fdfa2c07dbf2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_019ed283-6640-7eb4-a41f-437025f75144" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019ed283-6640-7d32-9613-20c559f4ada2" xlink:to="loc_us-gaap_CorporateNonSegmentMember_019ed283-6640-7eb4-a41f-437025f75144" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019ed283-6640-7b3f-af8a-0fb3da0b5abb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ed283-6640-7ac9-8bad-57293159ed16" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019ed283-6640-7b3f-af8a-0fb3da0b5abb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019ed283-6640-7b3f-af8a-0fb3da0b5abb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019ed283-6640-7b3f-af8a-0fb3da0b5abb" xlink:to="loc_us-gaap_SegmentDomain_019ed283-6640-7b3f-af8a-0fb3da0b5abb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019ed283-6640-7f38-9994-ab9aa2fc8730" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019ed283-6640-7b3f-af8a-0fb3da0b5abb" xlink:to="loc_us-gaap_SegmentDomain_019ed283-6640-7f38-9994-ab9aa2fc8730" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_AmericasSegmentMember_019ed283-6640-7315-8f21-96414ef4f69a" xlink:href="lulu-20260802.xsd#lulu_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019ed283-6640-7f38-9994-ab9aa2fc8730" xlink:to="loc_lulu_AmericasSegmentMember_019ed283-6640-7315-8f21-96414ef4f69a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_ChinaMainlandSegmentMember_019ed283-6640-7c56-9d52-a506599a292d" xlink:href="lulu-20260802.xsd#lulu_ChinaMainlandSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019ed283-6640-7f38-9994-ab9aa2fc8730" xlink:to="loc_lulu_ChinaMainlandSegmentMember_019ed283-6640-7c56-9d52-a506599a292d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_OtherCountrySegmentMember_019ed283-6640-70a1-932f-64e7529d2f21" xlink:href="lulu-20260802.xsd#lulu_OtherCountrySegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019ed283-6640-7f38-9994-ab9aa2fc8730" xlink:to="loc_lulu_OtherCountrySegmentMember_019ed283-6640-70a1-932f-64e7529d2f21" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019ed283-6640-7656-921b-98fa135d2231" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ed283-6640-7ac9-8bad-57293159ed16" xlink:to="loc_srt_ProductOrServiceAxis_019ed283-6640-7656-921b-98fa135d2231" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ed283-6640-7656-921b-98fa135d2231_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019ed283-6640-7656-921b-98fa135d2231" xlink:to="loc_srt_ProductsAndServicesDomain_019ed283-6640-7656-921b-98fa135d2231_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ed283-6640-7a64-b9df-d981fc9342be" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019ed283-6640-7656-921b-98fa135d2231" xlink:to="loc_srt_ProductsAndServicesDomain_019ed283-6640-7a64-b9df-d981fc9342be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductMember_019ed283-6640-7c15-b362-011bd5b6616f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ed283-6640-7a64-b9df-d981fc9342be" xlink:to="loc_us-gaap_ProductMember_019ed283-6640-7c15-b362-011bd5b6616f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductAndServiceOtherMember_019ed283-6640-785c-9d7f-2ce044cb8c2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductAndServiceOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ed283-6640-7a64-b9df-d981fc9342be" xlink:to="loc_us-gaap_ProductAndServiceOtherMember_019ed283-6640-785c-9d7f-2ce044cb8c2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingenciesByNatureAxis_01a0366c-0e36-7936-8fbf-1e2eab57b2dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingenciesByNatureAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ed283-6640-7ac9-8bad-57293159ed16" xlink:to="loc_us-gaap_GainContingenciesByNatureAxis_01a0366c-0e36-7936-8fbf-1e2eab57b2dc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingencyNatureDomain_01a0366c-0e36-7936-8fbf-1e2eab57b2dc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_GainContingenciesByNatureAxis_01a0366c-0e36-7936-8fbf-1e2eab57b2dc" xlink:to="loc_us-gaap_GainContingencyNatureDomain_01a0366c-0e36-7936-8fbf-1e2eab57b2dc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingencyNatureDomain_01a0366c-0e36-7013-8ffb-114fdcf14fee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_GainContingenciesByNatureAxis_01a0366c-0e36-7936-8fbf-1e2eab57b2dc" xlink:to="loc_us-gaap_GainContingencyNatureDomain_01a0366c-0e36-7013-8ffb-114fdcf14fee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_IEEPATariffRefundsMember_01a0366c-0e36-7adb-a194-a090235be8cb" xlink:href="lulu-20260802.xsd#lulu_IEEPATariffRefundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GainContingencyNatureDomain_01a0366c-0e36-7013-8ffb-114fdcf14fee" xlink:to="loc_lulu_IEEPATariffRefundsMember_01a0366c-0e36-7adb-a194-a090235be8cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ed283-6640-7e6b-8c9d-02ac8495bc60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ed283-6640-7e6b-8c9d-02ac8495bc60" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019ed283-6640-7142-818f-984148092856" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019ed283-6640-7142-818f-984148092856" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019ed283-6640-7e46-a408-15d2ea58d67d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019ed283-6640-7e46-a408-15d2ea58d67d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019ed283-6640-7223-bf01-53b6503f77a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019ed283-6640-7223-bf01-53b6503f77a4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019ed283-6640-76b7-be25-1e4723e26949" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_OperatingIncomeLoss_019ed283-6640-76b7-be25-1e4723e26949" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019ed283-6640-74a0-a44b-c4ce372b3a38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019ed283-6640-74a0-a44b-c4ce372b3a38" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ed283-6640-769b-a002-f25b0d7026f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ed283-6640-769b-a002-f25b0d7026f8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019ed283-6640-73e0-a569-81faef440107" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019ed283-6640-73e0-a569-81faef440107" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecoveryOfDirectCosts_01a0366c-0e36-7232-8069-62376d238a55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RecoveryOfDirectCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ed283-6640-7f04-87f2-078982264025" xlink:to="loc_us-gaap_RecoveryOfDirectCosts_01a0366c-0e36-7232-8069-62376d238a55" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://shop.lululemon.com/role/LegalProceedingsandOtherContingenciesDetails" xlink:type="simple" xlink:href="lulu-20260802.xsd#LegalProceedingsandOtherContingenciesDetails"/>
  <link:definitionLink xlink:role="http://shop.lululemon.com/role/LegalProceedingsandOtherContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_019ed283-6640-7faa-af65-3fd1d2b9c53c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_019ed283-6640-7666-90ff-16c44ed5d1cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_019ed283-6640-7faa-af65-3fd1d2b9c53c" xlink:to="loc_us-gaap_LossContingenciesTable_019ed283-6640-7666-90ff-16c44ed5d1cf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_019ed283-6640-7f6c-9ea0-2130d63bbbac" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019ed283-6640-7666-90ff-16c44ed5d1cf" xlink:to="loc_srt_LitigationCaseAxis_019ed283-6640-7f6c-9ea0-2130d63bbbac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019ed283-6640-7f6c-9ea0-2130d63bbbac_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_019ed283-6640-7f6c-9ea0-2130d63bbbac" xlink:to="loc_srt_LitigationCaseTypeDomain_019ed283-6640-7f6c-9ea0-2130d63bbbac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019ed283-6640-745b-a112-2085571bb405" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_019ed283-6640-7f6c-9ea0-2130d63bbbac" xlink:to="loc_srt_LitigationCaseTypeDomain_019ed283-6640-745b-a112-2085571bb405" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_DerivativeActionsMember_019ed283-6640-7f72-a6a1-70c090b4a4bb" xlink:href="lulu-20260802.xsd#lulu_DerivativeActionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_019ed283-6640-745b-a112-2085571bb405" xlink:to="loc_lulu_DerivativeActionsMember_019ed283-6640-7f72-a6a1-70c090b4a4bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis_019ed283-6640-7d15-911f-34177e0f4c3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LitigationStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019ed283-6640-7666-90ff-16c44ed5d1cf" xlink:to="loc_us-gaap_LitigationStatusAxis_019ed283-6640-7d15-911f-34177e0f4c3e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_019ed283-6640-7d15-911f-34177e0f4c3e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_019ed283-6640-7d15-911f-34177e0f4c3e" xlink:to="loc_us-gaap_LitigationStatusDomain_019ed283-6640-7d15-911f-34177e0f4c3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_019ed283-6640-7fdb-958d-2c0e9c9237c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_019ed283-6640-7d15-911f-34177e0f4c3e" xlink:to="loc_us-gaap_LitigationStatusDomain_019ed283-6640-7fdb-958d-2c0e9c9237c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PendingLitigationMember_019ed283-6640-78e8-8716-2cf8695adc79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PendingLitigationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_019ed283-6640-7fdb-958d-2c0e9c9237c1" xlink:to="loc_us-gaap_PendingLitigationMember_019ed283-6640-78e8-8716-2cf8695adc79" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingenciesByNatureAxis_019ffde1-1a83-70e0-89c5-9ab061d10cee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingenciesByNatureAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019ed283-6640-7666-90ff-16c44ed5d1cf" xlink:to="loc_us-gaap_GainContingenciesByNatureAxis_019ffde1-1a83-70e0-89c5-9ab061d10cee" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingencyNatureDomain_019ffde1-1a83-70e0-89c5-9ab061d10cee_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_GainContingenciesByNatureAxis_019ffde1-1a83-70e0-89c5-9ab061d10cee" xlink:to="loc_us-gaap_GainContingencyNatureDomain_019ffde1-1a83-70e0-89c5-9ab061d10cee_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingencyNatureDomain_019ffde1-1a83-746c-9da1-80f77ce30422" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_GainContingenciesByNatureAxis_019ffde1-1a83-70e0-89c5-9ab061d10cee" xlink:to="loc_us-gaap_GainContingencyNatureDomain_019ffde1-1a83-746c-9da1-80f77ce30422" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_IEEPATariffRefundsMember_019ffde1-1a83-703d-bef7-f9d3b1b30cf4" xlink:href="lulu-20260802.xsd#lulu_IEEPATariffRefundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GainContingencyNatureDomain_019ffde1-1a83-746c-9da1-80f77ce30422" xlink:to="loc_lulu_IEEPATariffRefundsMember_019ffde1-1a83-703d-bef7-f9d3b1b30cf4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber_019ed283-6640-7703-a463-942f58c5bd1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNewClaimsFiledNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019ed283-6640-7faa-af65-3fd1d2b9c53c" xlink:to="loc_us-gaap_LossContingencyNewClaimsFiledNumber_019ed283-6640-7703-a463-942f58c5bd1a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecoveryOfDirectCosts_019ffde1-1a83-79f3-bdd1-6939a760bc61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RecoveryOfDirectCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019ed283-6640-7faa-af65-3fd1d2b9c53c" xlink:to="loc_us-gaap_RecoveryOfDirectCosts_019ffde1-1a83-79f3-bdd1-6939a760bc61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lulu_IEEPATariffRefundClaimsInterest_01a00da9-91f3-7a7a-b187-cf684f6b7e06" xlink:href="lulu-20260802.xsd#lulu_IEEPATariffRefundClaimsInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019ed283-6640-7faa-af65-3fd1d2b9c53c" xlink:to="loc_lulu_IEEPATariffRefundClaimsInterest_01a00da9-91f3-7a7a-b187-cf684f6b7e06" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-roles-2026.xsd#eedm1"/>
  <link:definitionLink xlink:role="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent" xlink:type="arc" order="31"/>
  </link:definitionLink>
</link:linkbase>
