<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/AccountsReceivableAndAllowanceForBadDebt" xlink:href="livn-20151018.xsd#AccountsReceivableAndAllowanceForBadDebt" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/AccountsReceivableAndAllowanceForBadDebtSummaryOfAccountsReceivableDetails" xlink:href="livn-20151018.xsd#AccountsReceivableAndAllowanceForBadDebtSummaryOfAccountsReceivableDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/AccountsReceivableAndAllowanceForBadDebtTables" xlink:href="livn-20151018.xsd#AccountsReceivableAndAllowanceForBadDebtTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/AccruedLiabilities" xlink:href="livn-20151018.xsd#AccruedLiabilities" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/AccruedLiabilitiesSummaryOfAccruedLiabilitiesDetails" xlink:href="livn-20151018.xsd#AccruedLiabilitiesSummaryOfAccruedLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/AccruedLiabilitiesTables" xlink:href="livn-20151018.xsd#AccruedLiabilitiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CommitmentsAndContingencies" xlink:href="livn-20151018.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CommitmentsAndContingenciesDetails" xlink:href="livn-20151018.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CondensedConsolidatedBalanceSheets" xlink:href="livn-20151018.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:href="livn-20151018.xsd#CondensedConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:href="livn-20151018.xsd#CondensedConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfIncomeLoss" xlink:href="livn-20151018.xsd#CondensedConsolidatedStatementsOfIncomeLoss" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" xlink:href="livn-20151018.xsd#CondensedConsolidatedStatementsOfStockholdersEquity" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="livn-20151018.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/DocumentAndEntityInformation" xlink:href="livn-20151018.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/EmployeeRetirementSavingsPlanAndDeferredCompensationPlan" xlink:href="livn-20151018.xsd#EmployeeRetirementSavingsPlanAndDeferredCompensationPlan" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/EmployeeRetirementSavingsPlanAndDeferredCompensationPlanDetails" xlink:href="livn-20151018.xsd#EmployeeRetirementSavingsPlanAndDeferredCompensationPlanDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/FairValueMeasurements" xlink:href="livn-20151018.xsd#FairValueMeasurements" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/FairValueMeasurementsDetails" xlink:href="livn-20151018.xsd#FairValueMeasurementsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/ForeignCurrency" xlink:href="livn-20151018.xsd#ForeignCurrency" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/ForeignCurrencyDetails" xlink:href="livn-20151018.xsd#ForeignCurrencyDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/GeographicInformation" xlink:href="livn-20151018.xsd#GeographicInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/GeographicInformationLongLivedAssetsByGeographicAreasDetails" xlink:href="livn-20151018.xsd#GeographicInformationLongLivedAssetsByGeographicAreasDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/GeographicInformationRevenueFromExternalCustomersByGeographicAreasDetails" xlink:href="livn-20151018.xsd#GeographicInformationRevenueFromExternalCustomersByGeographicAreasDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/GeographicInformationTables" xlink:href="livn-20151018.xsd#GeographicInformationTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomePerShare" xlink:href="livn-20151018.xsd#IncomePerShare" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomePerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetails" xlink:href="livn-20151018.xsd#IncomePerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomePerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:href="livn-20151018.xsd#IncomePerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomePerShareTables" xlink:href="livn-20151018.xsd#IncomePerShareTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxes" xlink:href="livn-20151018.xsd#IncomeTaxes" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxesComponentsAndProvisionForIncomeTaxesDetails" xlink:href="livn-20151018.xsd#IncomeTaxesComponentsAndProvisionForIncomeTaxesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxesDeferredTaxAssetsCurrentAndNonCurrentDetails" xlink:href="livn-20151018.xsd#IncomeTaxesDeferredTaxAssetsCurrentAndNonCurrentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:href="livn-20151018.xsd#IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxesNarrativeDetails" xlink:href="livn-20151018.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxAssetsDetails" xlink:href="livn-20151018.xsd#IncomeTaxesSignificantComponentsOfDeferredTaxAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IncomeTaxesTables" xlink:href="livn-20151018.xsd#IncomeTaxesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IntangibleAssets" xlink:href="livn-20151018.xsd#IntangibleAssets" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IntangibleAssetsAmortizationDetails" xlink:href="livn-20151018.xsd#IntangibleAssetsAmortizationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IntangibleAssetsScheduleOfFiniteLivedIntangibleAssetsDetails" xlink:href="livn-20151018.xsd#IntangibleAssetsScheduleOfFiniteLivedIntangibleAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IntangibleAssetsScheduleOfFutureAmortizationExpenseDetails" xlink:href="livn-20151018.xsd#IntangibleAssetsScheduleOfFutureAmortizationExpenseDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IntangibleAssetsScheduleOfWeightedAverageAmortizationPeriodDetails" xlink:href="livn-20151018.xsd#IntangibleAssetsScheduleOfWeightedAverageAmortizationPeriodDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/IntangibleAssetsTables" xlink:href="livn-20151018.xsd#IntangibleAssetsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/Inventories" xlink:href="livn-20151018.xsd#Inventories" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/InventoriesScheduleOfInventoryComponentsDetails" xlink:href="livn-20151018.xsd#InventoriesScheduleOfInventoryComponentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/InventoriesTables" xlink:href="livn-20151018.xsd#InventoriesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/Investments" xlink:href="livn-20151018.xsd#Investments" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/InvestmentsRangeOfShortTermInvestmentsDetails" xlink:href="livn-20151018.xsd#InvestmentsRangeOfShortTermInvestmentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/InvestmentsScheduleOfLongTermInvestmentsDetails" xlink:href="livn-20151018.xsd#InvestmentsScheduleOfLongTermInvestmentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/InvestmentsScheduleOfShortTermInvestmentsDetails" xlink:href="livn-20151018.xsd#InvestmentsScheduleOfShortTermInvestmentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/InvestmentsTables" xlink:href="livn-20151018.xsd#InvestmentsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/LongTermLiabilities" xlink:href="livn-20151018.xsd#LongTermLiabilities" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/LongTermLiabilitiesDetails" xlink:href="livn-20151018.xsd#LongTermLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/LongTermLiabilitiesTables" xlink:href="livn-20151018.xsd#LongTermLiabilitiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/NewAccountingPronouncements" xlink:href="livn-20151018.xsd#NewAccountingPronouncements" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies" xlink:href="livn-20151018.xsd#OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesDetails" xlink:href="livn-20151018.xsd#OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesPolicy" xlink:href="livn-20151018.xsd#OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesPolicy" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/PropertyPlantAndEquipment" xlink:href="livn-20151018.xsd#PropertyPlantAndEquipment" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails" xlink:href="livn-20151018.xsd#PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/PropertyPlantAndEquipmentTables" xlink:href="livn-20151018.xsd#PropertyPlantAndEquipmentTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlans" xlink:href="livn-20151018.xsd#StockBasedIncentivePlans" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlansAllocationOfShareBasedCompensationCostsByExpenseCategoryDetails" xlink:href="livn-20151018.xsd#StockBasedIncentivePlansAllocationOfShareBasedCompensationCostsByExpenseCategoryDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlansAllocationOfShareBasedCompensationCostsByTypeOfArrangementDetails" xlink:href="livn-20151018.xsd#StockBasedIncentivePlansAllocationOfShareBasedCompensationCostsByTypeOfArrangementDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlansTables" xlink:href="livn-20151018.xsd#StockBasedIncentivePlansTables" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/StockholdersEquity" xlink:href="livn-20151018.xsd#StockholdersEquity" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/StockholdersEquityDetails" xlink:href="livn-20151018.xsd#StockholdersEquityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/SubsequentEventMergerWithSorin" xlink:href="livn-20151018.xsd#SubsequentEventMergerWithSorin" xlink:type="simple" />
  <roleRef roleURI="http://www.livanova.cyberonics.com/role/SubsequentEventMergerWithSorinNarrativedetails" xlink:href="livn-20151018.xsd#SubsequentEventMergerWithSorinNarrativedetails" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/AccountsReceivableAndAllowanceForBadDebt" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/AccountsReceivableAndAllowanceForBadDebtSummaryOfAccountsReceivableDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/AccountsReceivableAndAllowanceForBadDebtTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/AccruedLiabilities" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/AccruedLiabilitiesSummaryOfAccruedLiabilitiesDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/AccruedLiabilitiesTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsLineItems" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_D32CAF6BD947508D83EF8A5F04993E7D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsTable" xlink:label="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_D32CAF6BD947508D83EF8A5F04993E7D" xlink:to="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LitigationCaseAxis" xlink:label="loc_us-gaap_LitigationCaseAxis_4625FA0382985E1C85FC363E133E0DC5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:to="loc_us-gaap_LitigationCaseAxis_4625FA0382985E1C85FC363E133E0DC5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LitigationCaseTypeDomain" xlink:label="loc_us-gaap_LitigationCaseTypeDomain_5EAB1EFEA9937720F23A5EBE84A321B6_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationCaseAxis_4625FA0382985E1C85FC363E133E0DC5" xlink:to="loc_us-gaap_LitigationCaseTypeDomain_5EAB1EFEA9937720F23A5EBE84A321B6_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LitigationCaseTypeDomain" xlink:label="loc_us-gaap_LitigationCaseTypeDomain_561533ADF3665D05B85C91C386A29B62" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationCaseAxis_4625FA0382985E1C85FC363E133E0DC5" xlink:to="loc_us-gaap_LitigationCaseTypeDomain_561533ADF3665D05B85C91C386A29B62" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_FederalFalseClaimsActMember" xlink:label="loc_livn_FederalFalseClaimsActMember_C3AE6CEE73C85AAEA3DABAAAB8AB3CCE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationCaseTypeDomain_561533ADF3665D05B85C91C386A29B62" xlink:to="loc_livn_FederalFalseClaimsActMember_C3AE6CEE73C85AAEA3DABAAAB8AB3CCE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsAxis" xlink:label="loc_us-gaap_OtherCommitmentsAxis_3FFB1BDC0A7550D483330CC2FEF1A1D7" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:to="loc_us-gaap_OtherCommitmentsAxis_3FFB1BDC0A7550D483330CC2FEF1A1D7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsDomain" xlink:label="loc_us-gaap_OtherCommitmentsDomain_4668B128949C84CBAFFA5EBE84A30912_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_OtherCommitmentsAxis_3FFB1BDC0A7550D483330CC2FEF1A1D7" xlink:to="loc_us-gaap_OtherCommitmentsDomain_4668B128949C84CBAFFA5EBE84A30912_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsDomain" xlink:label="loc_us-gaap_OtherCommitmentsDomain_9601679327355EDDAD85AD265220D273" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_OtherCommitmentsAxis_3FFB1BDC0A7550D483330CC2FEF1A1D7" xlink:to="loc_us-gaap_OtherCommitmentsDomain_9601679327355EDDAD85AD265220D273" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_AnnualMinimumRoyaltyPaymentMember" xlink:label="loc_livn_AnnualMinimumRoyaltyPaymentMember_02EBE46008675B26A020780518A18B2C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsDomain_9601679327355EDDAD85AD265220D273" xlink:to="loc_livn_AnnualMinimumRoyaltyPaymentMember_02EBE46008675B26A020780518A18B2C" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_MilestonePaymentMember" xlink:label="loc_livn_MilestonePaymentMember_10266F2A1BFB57B2BDD2642CB4A19CA7" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsDomain_9601679327355EDDAD85AD265220D273" xlink:to="loc_livn_MilestonePaymentMember_10266F2A1BFB57B2BDD2642CB4A19CA7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="loc_us-gaap_TypeOfArrangementAxis_2C7000E48742589D89B3257B89EEBB3A" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:to="loc_us-gaap_TypeOfArrangementAxis_2C7000E48742589D89B3257B89EEBB3A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_6941083853C75A0484155EBE84A4B567_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_2C7000E48742589D89B3257B89EEBB3A" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_6941083853C75A0484155EBE84A4B567_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_30ED816FC46157058BB906857C5AC9CB" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_2C7000E48742589D89B3257B89EEBB3A" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_30ED816FC46157058BB906857C5AC9CB" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_PatentLicenseAndTechnologyTransferArrangementMember" xlink:label="loc_livn_PatentLicenseAndTechnologyTransferArrangementMember_620A6658F06659C98D8B1D7653A609DE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_30ED816FC46157058BB906857C5AC9CB" xlink:to="loc_livn_PatentLicenseAndTechnologyTransferArrangementMember_620A6658F06659C98D8B1D7653A609DE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="loc_us-gaap_CounterpartyNameAxis_203CF877C634590EB4E7404CB78F4590" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:to="loc_us-gaap_CounterpartyNameAxis_203CF877C634590EB4E7404CB78F4590" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_C16261BE7A2D02BE7EB55EBE84A5D0E6_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CounterpartyNameAxis_203CF877C634590EB4E7404CB78F4590" xlink:to="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_C16261BE7A2D02BE7EB55EBE84A5D0E6_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_190BCBDCD58E5C1B92C9268804D901EE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CounterpartyNameAxis_203CF877C634590EB4E7404CB78F4590" xlink:to="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_190BCBDCD58E5C1B92C9268804D901EE" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_ImricorMedicalSystemsMember" xlink:label="loc_livn_ImricorMedicalSystemsMember_DEB159CAC63F574B855C892F92F01181" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_190BCBDCD58E5C1B92C9268804D901EE" xlink:to="loc_livn_ImricorMedicalSystemsMember_DEB159CAC63F574B855C892F92F01181" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_87E316CBE77455C7AF9741F1EC2B92AE" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:to="loc_us-gaap_StatementScenarioAxis_87E316CBE77455C7AF9741F1EC2B92AE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_BE3CF87468C5E640CEDF5EBE84A5A669_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_87E316CBE77455C7AF9741F1EC2B92AE" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_BE3CF87468C5E640CEDF5EBE84A5A669_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_3DC960E9840B54839ED64E15ACFCDD16" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_87E316CBE77455C7AF9741F1EC2B92AE" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_3DC960E9840B54839ED64E15ACFCDD16" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_4AB9498B9E6559438E732418B76E5B2F" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_D03C4FC7501158968FC3834FCC0B79F5" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_4AB9498B9E6559438E732418B76E5B2F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_AA1F704EB3444A1161845EBE84A6B908_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_4AB9498B9E6559438E732418B76E5B2F" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_AA1F704EB3444A1161845EBE84A6B908_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_9B571F28341757359B94ECF05C55E6A5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_4AB9498B9E6559438E732418B76E5B2F" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_9B571F28341757359B94ECF05C55E6A5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_F852DEFC153857508A3C784585160D2B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_9B571F28341757359B94ECF05C55E6A5" xlink:to="loc_us-gaap_SubsequentEventMember_F852DEFC153857508A3C784585160D2B" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_LossContingencyFalseClaimStatutesNumberOfStates" xlink:label="loc_livn_LossContingencyFalseClaimStatutesNumberOfStates_DB7FFA3101305E9DA39D64D8EB17C7F0" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_D32CAF6BD947508D83EF8A5F04993E7D" xlink:to="loc_livn_LossContingencyFalseClaimStatutesNumberOfStates_DB7FFA3101305E9DA39D64D8EB17C7F0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitment" xlink:label="loc_us-gaap_OtherCommitment_D913B8A125E65A0188C7BA65CF2E6107" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_D32CAF6BD947508D83EF8A5F04993E7D" xlink:to="loc_us-gaap_OtherCommitment_D913B8A125E65A0188C7BA65CF2E6107" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_C204D84D1B0158B289276D60C9783636" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_D32CAF6BD947508D83EF8A5F04993E7D" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_C204D84D1B0158B289276D60C9783636" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfIncomeLoss" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_B7487E1F4B9D5DAAA6D98399731AD57A" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_B6EF3DAD67075E1EBAFFB1A15C569F52" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_B7487E1F4B9D5DAAA6D98399731AD57A" xlink:to="loc_us-gaap_StatementTable_B6EF3DAD67075E1EBAFFB1A15C569F52" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_C7E5131EA31050B28BB8EBD01976CAC8" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_B6EF3DAD67075E1EBAFFB1A15C569F52" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_C7E5131EA31050B28BB8EBD01976CAC8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_AD7E02A5EC018D2C18A04024D1AC6B4D_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_C7E5131EA31050B28BB8EBD01976CAC8" xlink:to="loc_us-gaap_EquityComponentDomain_AD7E02A5EC018D2C18A04024D1AC6B4D_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_C7E5131EA31050B28BB8EBD01976CAC8" xlink:to="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_CAE741F584F25A9585EA552CFAB80867" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:to="loc_us-gaap_CommonStockMember_CAE741F584F25A9585EA552CFAB80867" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_CBA5B4FBFA285D87899BCEB2A1EC5DDA" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_CBA5B4FBFA285D87899BCEB2A1EC5DDA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_92114B038C295D1D917302221ADADE1F" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:to="loc_us-gaap_TreasuryStockMember_92114B038C295D1D917302221ADADE1F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_3C56F9AA7F795B8BA605B3606E67904F" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_3C56F9AA7F795B8BA605B3606E67904F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_23D66933A83155AF91D00707C653317D" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0B986CCF4BF25208857A024ADBE54119" xlink:to="loc_us-gaap_RetainedEarningsMember_23D66933A83155AF91D00707C653317D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_B7487E1F4B9D5DAAA6D98399731AD57A" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_ABBD113A8B80571B99E9795EA022D8C4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_StockholdersEquity_ABBD113A8B80571B99E9795EA022D8C4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_DB3DF9134B5551D3BD3D2D5E042F2545" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_CommonStockSharesIssued_DB3DF9134B5551D3BD3D2D5E042F2545" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_CC35CE66DB3C5EF9BDBCF2F1F2879BEE" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_CC35CE66DB3C5EF9BDBCF2F1F2879BEE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_39F46D0BC3C85719B913C39534D899D1" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_39F46D0BC3C85719B913C39534D899D1" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_AdjustmenttoAdditionalPaidinCapitalSharebasedCompensationReclassificationtoCurrentLiability" xlink:label="loc_livn_AdjustmenttoAdditionalPaidinCapitalSharebasedCompensationReclassificationtoCurrentLiability_00A15B8A15595EDE8C1E0421277E0FE9" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_livn_AdjustmenttoAdditionalPaidinCapitalSharebasedCompensationReclassificationtoCurrentLiability_00A15B8A15595EDE8C1E0421277E0FE9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4C36DC90ED925653AD14474D8627B994" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4C36DC90ED925653AD14474D8627B994" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_23D3E60015125A37BB4D16F8D2E55891" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_NetIncomeLoss_23D3E60015125A37BB4D16F8D2E55891" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_E67E6D4367FD51DE9558EE0524FE0DEF" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_485362E968455746AFDDDA2BB352EC01" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_E67E6D4367FD51DE9558EE0524FE0DEF" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/EmployeeRetirementSavingsPlanAndDeferredCompensationPlan" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/EmployeeRetirementSavingsPlanAndDeferredCompensationPlanDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B1A6B06BA18458538FFC4BE2E671AC64" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B1A6B06BA18458538FFC4BE2E671AC64" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanTypeAxis" xlink:label="loc_us-gaap_DefinedContributionPlanTypeAxis_BE7C694D427C5AB294EF687FF1E16147" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B1A6B06BA18458538FFC4BE2E671AC64" xlink:to="loc_us-gaap_DefinedContributionPlanTypeAxis_BE7C694D427C5AB294EF687FF1E16147" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanTypeDomain" xlink:label="loc_us-gaap_DefinedContributionPlanTypeDomain_E51C8EB4AC68FA3F3BB83F4064E96996_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DefinedContributionPlanTypeAxis_BE7C694D427C5AB294EF687FF1E16147" xlink:to="loc_us-gaap_DefinedContributionPlanTypeDomain_E51C8EB4AC68FA3F3BB83F4064E96996_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanTypeDomain" xlink:label="loc_us-gaap_DefinedContributionPlanTypeDomain_6C70AEC700B051138E8BCECDF29FC2F5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DefinedContributionPlanTypeAxis_BE7C694D427C5AB294EF687FF1E16147" xlink:to="loc_us-gaap_DefinedContributionPlanTypeDomain_6C70AEC700B051138E8BCECDF29FC2F5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ForeignPensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_ForeignPensionPlansDefinedBenefitMember_96A9F9A286845743898CAFF6581F45E9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanTypeDomain_6C70AEC700B051138E8BCECDF29FC2F5" xlink:to="loc_us-gaap_ForeignPensionPlansDefinedBenefitMember_96A9F9A286845743898CAFF6581F45E9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_DB4C1FA9C5D756D19F1E74C368AAE58A" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_B1A6B06BA18458538FFC4BE2E671AC64" xlink:to="loc_us-gaap_StatementGeographicalAxis_DB4C1FA9C5D756D19F1E74C368AAE58A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_973C7C7A207D0A294E083F4064E9CC04_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_DB4C1FA9C5D756D19F1E74C368AAE58A" xlink:to="loc_us-gaap_SegmentGeographicalDomain_973C7C7A207D0A294E083F4064E9CC04_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_2F690B8E738959A882671A25D3AEC87B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_DB4C1FA9C5D756D19F1E74C368AAE58A" xlink:to="loc_us-gaap_SegmentGeographicalDomain_2F690B8E738959A882671A25D3AEC87B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_BE" xlink:label="loc_country_BE_F7EA5EE040625323A8C75E2D4EC4C9D7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_2F690B8E738959A882671A25D3AEC87B" xlink:to="loc_country_BE_F7EA5EE040625323A8C75E2D4EC4C9D7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_26CB064259E554AFAFADC70C55F91041" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_26CB064259E554AFAFADC70C55F91041" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_EABCFA0152405D22BF970751BB97D03F" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_EABCFA0152405D22BF970751BB97D03F" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_DefinedContributionPlanVestingPeriod" xlink:label="loc_livn_DefinedContributionPlanVestingPeriod_52FD31FDED3355C4BB203DD8CBBD2284" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_livn_DefinedContributionPlanVestingPeriod_52FD31FDED3355C4BB203DD8CBBD2284" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_97F8A6A240E95BA3835FA4908DF67C1D" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_97F8A6A240E95BA3835FA4908DF67C1D" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_DeferredCompensationPlanBaseSalaryCompensationEligibleForDeferralPercent" xlink:label="loc_livn_DeferredCompensationPlanBaseSalaryCompensationEligibleForDeferralPercent_EE92F322E2745E5E985EDFCD33F76573" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_livn_DeferredCompensationPlanBaseSalaryCompensationEligibleForDeferralPercent_EE92F322E2745E5E985EDFCD33F76573" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_DeferredCompensationPlanBonusOrPerformanceBasedCompensationEligibleForDeferralPercent" xlink:label="loc_livn_DeferredCompensationPlanBonusOrPerformanceBasedCompensationEligibleForDeferralPercent_F75DDD156D8152EF85A3AFEB6F5E5AE2" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_livn_DeferredCompensationPlanBonusOrPerformanceBasedCompensationEligibleForDeferralPercent_F75DDD156D8152EF85A3AFEB6F5E5AE2" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_DeferredCompensationPlanEmployeeContributionsMatchedPercent" xlink:label="loc_livn_DeferredCompensationPlanEmployeeContributionsMatchedPercent_0E93A3E7071754BCBE057D7678C4C091" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_livn_DeferredCompensationPlanEmployeeContributionsMatchedPercent_0E93A3E7071754BCBE057D7678C4C091" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_DeferredCompensationPlanMaximumMatchedEligibleEarnings" xlink:label="loc_livn_DeferredCompensationPlanMaximumMatchedEligibleEarnings_5460559D22115D2DB3A06284189B610E" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_livn_DeferredCompensationPlanMaximumMatchedEligibleEarnings_5460559D22115D2DB3A06284189B610E" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_DeferredCompensationPlanVestingPeriod" xlink:label="loc_livn_DeferredCompensationPlanVestingPeriod_6500B807354151D38540FCC2076898AC" xlink:type="locator" />
    <definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_livn_DeferredCompensationPlanVestingPeriod_6500B807354151D38540FCC2076898AC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_0DD3552F048E50D58BED77F8A5E4AB97" xlink:type="locator" />
    <definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_0DD3552F048E50D58BED77F8A5E4AB97" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3039BE781DE5C0C8A78D893438C3810" xlink:type="locator" />
    <definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_840319995D535E3EB046A63B827AAED3" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3039BE781DE5C0C8A78D893438C3810" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/FairValueMeasurements" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_60ECF2E7B5AB5D5CA004D8331656FFE0" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_60ECF2E7B5AB5D5CA004D8331656FFE0" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_14C59B9E59225EF7B03FB575BBD4B4D1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_60ECF2E7B5AB5D5CA004D8331656FFE0" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_14C59B9E59225EF7B03FB575BBD4B4D1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain_05CFC7EC731813F1937F4024CF34C27B_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_14C59B9E59225EF7B03FB575BBD4B4D1" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain_05CFC7EC731813F1937F4024CF34C27B_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain_1668EED7A3885AF2894E20346EEA90A0" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_14C59B9E59225EF7B03FB575BBD4B4D1" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain_1668EED7A3885AF2894E20346EEA90A0" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_CerbomedGmbhMember" xlink:label="loc_livn_CerbomedGmbhMember_8D0175174A0F5A949EC73386CA4F1144" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_1668EED7A3885AF2894E20346EEA90A0" xlink:to="loc_livn_CerbomedGmbhMember_8D0175174A0F5A949EC73386CA4F1144" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_ImTheraMedicalInc.Member" xlink:label="loc_livn_ImTheraMedicalInc.Member_5D76FA48C58C5D0FB717B779DBB33F00" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_1668EED7A3885AF2894E20346EEA90A0" xlink:to="loc_livn_ImTheraMedicalInc.Member_5D76FA48C58C5D0FB717B779DBB33F00" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_DEC1B77FCCAD592095EA73418FB12A4D" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_60ECF2E7B5AB5D5CA004D8331656FFE0" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_DEC1B77FCCAD592095EA73418FB12A4D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_3E78A152EEFE43A8578A4024CF3444D2_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_DEC1B77FCCAD592095EA73418FB12A4D" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_3E78A152EEFE43A8578A4024CF3444D2_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_9B8B8BAA38E857BC9441035129907ACD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_DEC1B77FCCAD592095EA73418FB12A4D" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_9B8B8BAA38E857BC9441035129907ACD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_3A5C0D1728AF5E35B71B1ED61EF84915" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_9B8B8BAA38E857BC9441035129907ACD" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_3A5C0D1728AF5E35B71B1ED61EF84915" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredCompensationPlanAssets" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_DB03C032AC945B40AD7C29BDDBB8BBA5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_DB03C032AC945B40AD7C29BDDBB8BBA5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostMethodInvestmentsFairValueDisclosure" xlink:label="loc_us-gaap_CostMethodInvestmentsFairValueDisclosure_EE9DA46A2493548EBC00796FC419E5EC" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:to="loc_us-gaap_CostMethodInvestmentsFairValueDisclosure_EE9DA46A2493548EBC00796FC419E5EC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostMethodInvestmentsOriginalCost" xlink:label="loc_us-gaap_CostMethodInvestmentsOriginalCost_D16861D3A09453919A3093B7066C61C6" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:to="loc_us-gaap_CostMethodInvestmentsOriginalCost_D16861D3A09453919A3093B7066C61C6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_5F02DE7BCDB85E938B03B6FB993EE5C0" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_5F02DE7BCDB85E938B03B6FB993EE5C0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_444D7FEDDB0F5257BABA09D30EF110E3" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FC6B3DD71E34527DB66889375D19412A" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_444D7FEDDB0F5257BABA09D30EF110E3" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/ForeignCurrency" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/ForeignCurrencyDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/GeographicInformation" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/GeographicInformationLongLivedAssetsByGeographicAreasDetails" xlink:type="extended">
    <loc xlink:href="livn-20151018.xsd#livn_ScheduleOfLongLivedAssetsByGeographicAreaLineItems" xlink:label="loc_livn_ScheduleOfLongLivedAssetsByGeographicAreaLineItems_10002ABF04F858E28AEFA300CCFB9802" xlink:type="locator" />
    <loc xlink:href="livn-20151018.xsd#livn_ScheduleOfLongLivedAssetsByGeographicAreaTable" xlink:label="loc_livn_ScheduleOfLongLivedAssetsByGeographicAreaTable_8586EC9AA6BE50CA8FB908D78B2D01FE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_livn_ScheduleOfLongLivedAssetsByGeographicAreaLineItems_10002ABF04F858E28AEFA300CCFB9802" xlink:to="loc_livn_ScheduleOfLongLivedAssetsByGeographicAreaTable_8586EC9AA6BE50CA8FB908D78B2D01FE" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_E290C3DABA22545D82F1A416B9699EBE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_livn_ScheduleOfLongLivedAssetsByGeographicAreaTable_8586EC9AA6BE50CA8FB908D78B2D01FE" xlink:to="loc_us-gaap_StatementGeographicalAxis_E290C3DABA22545D82F1A416B9699EBE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_406C3CD6864E5AF7C0FD3FBF1F52FBA6_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_E290C3DABA22545D82F1A416B9699EBE" xlink:to="loc_us-gaap_SegmentGeographicalDomain_406C3CD6864E5AF7C0FD3FBF1F52FBA6_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_036F3F7AC7805860B7A98BF9B1997A42" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_E290C3DABA22545D82F1A416B9699EBE" xlink:to="loc_us-gaap_SegmentGeographicalDomain_036F3F7AC7805860B7A98BF9B1997A42" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_US" xlink:label="loc_country_US_43D3B56EB1F859F9AE22085EDC4FF713" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_036F3F7AC7805860B7A98BF9B1997A42" xlink:to="loc_country_US_43D3B56EB1F859F9AE22085EDC4FF713" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_InternationalMember" xlink:label="loc_livn_InternationalMember_7228C29FBB1052E79A1559273BDB79E4" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_036F3F7AC7805860B7A98BF9B1997A42" xlink:to="loc_livn_InternationalMember_7228C29FBB1052E79A1559273BDB79E4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_E1046B0A08655FA48F54C20CA7B5F3C3" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_livn_ScheduleOfLongLivedAssetsByGeographicAreaLineItems_10002ABF04F858E28AEFA300CCFB9802" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_E1046B0A08655FA48F54C20CA7B5F3C3" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/GeographicInformationRevenueFromExternalCustomersByGeographicAreasDetails" xlink:type="extended">
    <loc xlink:href="livn-20151018.xsd#livn_ScheduleOfRevenuesFromExternalCustomersByGeographicAreaLineItems" xlink:label="loc_livn_ScheduleOfRevenuesFromExternalCustomersByGeographicAreaLineItems_FB77F34D083D590B901869EDF66F483E" xlink:type="locator" />
    <loc xlink:href="livn-20151018.xsd#livn_ScheduleofRevenuesFromExternalCustomersByGeographicAreaTable" xlink:label="loc_livn_ScheduleofRevenuesFromExternalCustomersByGeographicAreaTable_B5585B1D08EA5D1DBFABB525F3D2170E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_livn_ScheduleOfRevenuesFromExternalCustomersByGeographicAreaLineItems_FB77F34D083D590B901869EDF66F483E" xlink:to="loc_livn_ScheduleofRevenuesFromExternalCustomersByGeographicAreaTable_B5585B1D08EA5D1DBFABB525F3D2170E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_78D26521C8E55A11851C9199D30CE85D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_livn_ScheduleofRevenuesFromExternalCustomersByGeographicAreaTable_B5585B1D08EA5D1DBFABB525F3D2170E" xlink:to="loc_us-gaap_StatementGeographicalAxis_78D26521C8E55A11851C9199D30CE85D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_9FAC96FEB11E48F96BD54742EE1DF5E3_BE556B038F1F5930B5A14301D48E49D9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_78D26521C8E55A11851C9199D30CE85D" xlink:to="loc_us-gaap_SegmentGeographicalDomain_9FAC96FEB11E48F96BD54742EE1DF5E3_BE556B038F1F5930B5A14301D48E49D9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_88AD8975A22F59EEBF1200445D45B601" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_78D26521C8E55A11851C9199D30CE85D" xlink:to="loc_us-gaap_SegmentGeographicalDomain_88AD8975A22F59EEBF1200445D45B601" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_US" xlink:label="loc_country_US_F831B1FB2ED0574592E2AE0DE77E6B0D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_88AD8975A22F59EEBF1200445D45B601" xlink:to="loc_country_US_F831B1FB2ED0574592E2AE0DE77E6B0D" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_InternationalMember" xlink:label="loc_livn_InternationalMember_107543C9086E56B986B1D786BB785C01" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_88AD8975A22F59EEBF1200445D45B601" xlink:to="loc_livn_InternationalMember_107543C9086E56B986B1D786BB785C01" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_FEA99112588956C7921DE53E9B1B4CFA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_livn_ScheduleOfRevenuesFromExternalCustomersByGeographicAreaLineItems_FB77F34D083D590B901869EDF66F483E" xlink:to="loc_us-gaap_SalesRevenueNet_FEA99112588956C7921DE53E9B1B4CFA" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/GeographicInformationTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomePerShare" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomePerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_8C26EDABA0035BEBB38BACFB7C516E23" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7251E98113C4539FB1EF3B192ACA6E1E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_8C26EDABA0035BEBB38BACFB7C516E23" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7251E98113C4539FB1EF3B192ACA6E1E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_EF29AC8104CD50298D55AB3A6AF9F1BC" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7251E98113C4539FB1EF3B192ACA6E1E" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_EF29AC8104CD50298D55AB3A6AF9F1BC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_22962CDE823670936A693A654F5E92A7_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_EF29AC8104CD50298D55AB3A6AF9F1BC" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_22962CDE823670936A693A654F5E92A7_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_574A94EC10C85FDEA6C9BB126AD06F37" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_EF29AC8104CD50298D55AB3A6AF9F1BC" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_574A94EC10C85FDEA6C9BB126AD06F37" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_9890C8AB4DB8567895AB3D98B5E714C5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_574A94EC10C85FDEA6C9BB126AD06F37" xlink:to="loc_us-gaap_EmployeeStockOptionMember_9890C8AB4DB8567895AB3D98B5E714C5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_07B1F154E89F5BDEB1A324C3360F2475" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_8C26EDABA0035BEBB38BACFB7C516E23" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_07B1F154E89F5BDEB1A324C3360F2475" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomePerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomePerShareTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxes" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxesComponentsAndProvisionForIncomeTaxesDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxesDeferredTaxAssetsCurrentAndNonCurrentDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLossCarryforwardsLineItems" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_251DC04B368758329E165874B71C605D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLossCarryforwardsTable" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_67A7465EA97B5110A54EDC393F67C921" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_251DC04B368758329E165874B71C605D" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_67A7465EA97B5110A54EDC393F67C921" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_0AA3A73AF8EF59F0B07AA8AEF50BA52E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_67A7465EA97B5110A54EDC393F67C921" xlink:to="loc_us-gaap_TaxCreditCarryforwardAxis_0AA3A73AF8EF59F0B07AA8AEF50BA52E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_FA186AE5B0AE2E9ECFB03A9504A6B806_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_0AA3A73AF8EF59F0B07AA8AEF50BA52E" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_FA186AE5B0AE2E9ECFB03A9504A6B806_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_CB4CE1C666075285A9E86F38178D82D2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_0AA3A73AF8EF59F0B07AA8AEF50BA52E" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_CB4CE1C666075285A9E86F38178D82D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchMember" xlink:label="loc_us-gaap_ResearchMember_E8592B0FDAA8506794FBFCC31928DDD0" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_CB4CE1C666075285A9E86F38178D82D2" xlink:to="loc_us-gaap_ResearchMember_E8592B0FDAA8506794FBFCC31928DDD0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_B6DA654E1D5054A38E4929F53115012C" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_67A7465EA97B5110A54EDC393F67C921" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_B6DA654E1D5054A38E4929F53115012C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_C55116089178368BD0243A8D1B9FFF2B_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_B6DA654E1D5054A38E4929F53115012C" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_C55116089178368BD0243A8D1B9FFF2B_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_C0569F6CF89C5EB892B5B566707AD562" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_B6DA654E1D5054A38E4929F53115012C" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_C0569F6CF89C5EB892B5B566707AD562" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_A5F11EDD5A6A53C1A023B9A7C0E3ACD9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_C0569F6CF89C5EB892B5B566707AD562" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_A5F11EDD5A6A53C1A023B9A7C0E3ACD9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="loc_us-gaap_DomesticCountryMember_784259681B875AF8B69E0A2C234E69E5" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_C0569F6CF89C5EB892B5B566707AD562" xlink:to="loc_us-gaap_DomesticCountryMember_784259681B875AF8B69E0A2C234E69E5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ForeignCountryMember" xlink:label="loc_us-gaap_ForeignCountryMember_A2ABFBC7816358AB8733B08FDB7960CB" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_C0569F6CF89C5EB892B5B566707AD562" xlink:to="loc_us-gaap_ForeignCountryMember_A2ABFBC7816358AB8733B08FDB7960CB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_6DEC92548B5B5DD591E442B3B54520F3" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_251DC04B368758329E165874B71C605D" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_6DEC92548B5B5DD591E442B3B54520F3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_50426FAB3FC6554E98107A54D492DEAE" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_251DC04B368758329E165874B71C605D" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_50426FAB3FC6554E98107A54D492DEAE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaap_OperatingLossCarryforwards_48D5D4968D4154EEA8192E35F87B52BB" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_251DC04B368758329E165874B71C605D" xlink:to="loc_us-gaap_OperatingLossCarryforwards_48D5D4968D4154EEA8192E35F87B52BB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLossCarryforwardsValuationAllowance" xlink:label="loc_us-gaap_OperatingLossCarryforwardsValuationAllowance_1F3C47FB790B5F4BB8DDE1DB9F7EF39E" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_251DC04B368758329E165874B71C605D" xlink:to="loc_us-gaap_OperatingLossCarryforwardsValuationAllowance_1F3C47FB790B5F4BB8DDE1DB9F7EF39E" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxAssetsDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IncomeTaxesTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IntangibleAssets" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IntangibleAssetsAmortizationDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_091CF0C1FBAE52CC9BBF871FDDA94283" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_23BBCDC259FD5E65A9AEEFB370E164C8" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_091CF0C1FBAE52CC9BBF871FDDA94283" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_23BBCDC259FD5E65A9AEEFB370E164C8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A71520DEDB705CA18A703BBF996E1479" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_23BBCDC259FD5E65A9AEEFB370E164C8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A71520DEDB705CA18A703BBF996E1479" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5DA2FA38730C0355B7DB364FEF041201_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A71520DEDB705CA18A703BBF996E1479" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5DA2FA38730C0355B7DB364FEF041201_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_A19A98EFA8B7553CBFE3E4778CF13B4F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A71520DEDB705CA18A703BBF996E1479" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_A19A98EFA8B7553CBFE3E4778CF13B4F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_B7EF5AA0969F5BD882EC8CC94F230F7C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_A19A98EFA8B7553CBFE3E4778CF13B4F" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_B7EF5AA0969F5BD882EC8CC94F230F7C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_60233C76BC8057FE84571F03AB8E3D3E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_091CF0C1FBAE52CC9BBF871FDDA94283" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_60233C76BC8057FE84571F03AB8E3D3E" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IntangibleAssetsScheduleOfFiniteLivedIntangibleAssetsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_52C7B64BC5515EAB8D4B816B44EB47B0" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_B0A8EBDA61D054E8B97CB01EA1853DF7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_52C7B64BC5515EAB8D4B816B44EB47B0" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_B0A8EBDA61D054E8B97CB01EA1853DF7" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D62101887BC9551587E11FE5669603A4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_B0A8EBDA61D054E8B97CB01EA1853DF7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D62101887BC9551587E11FE5669603A4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_B3783F0BB72D223AAF4356E112D993B3_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D62101887BC9551587E11FE5669603A4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_B3783F0BB72D223AAF4356E112D993B3_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_891CBA8371895AC9BEEA04D758B06DF5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D62101887BC9551587E11FE5669603A4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_891CBA8371895AC9BEEA04D758B06DF5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_9277C42C6992566BAFE99294A501D97D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_891CBA8371895AC9BEEA04D758B06DF5" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_9277C42C6992566BAFE99294A501D97D" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_MagneticResonanceTechnologyMember" xlink:label="loc_livn_MagneticResonanceTechnologyMember_B497925319885258880BB369338A6B90" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DevelopedTechnologyRightsMember_9277C42C6992566BAFE99294A501D97D" xlink:to="loc_livn_MagneticResonanceTechnologyMember_B497925319885258880BB369338A6B90" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherIntangibleAssetsMember" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_8861E8989E2658B1A68AA21F07C41B08" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_891CBA8371895AC9BEEA04D758B06DF5" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_8861E8989E2658B1A68AA21F07C41B08" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_329F1DA83F3558C095B7049870DAE1C3" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_52C7B64BC5515EAB8D4B816B44EB47B0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_329F1DA83F3558C095B7049870DAE1C3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_AEC538373EDC57BBACCD7B9C2EA52101" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_52C7B64BC5515EAB8D4B816B44EB47B0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_AEC538373EDC57BBACCD7B9C2EA52101" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7130C84BD35D555F9FFB683A607D3655" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_52C7B64BC5515EAB8D4B816B44EB47B0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7130C84BD35D555F9FFB683A607D3655" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_4D105368B9B15EC1AA4E2DEEEEA32662" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_52C7B64BC5515EAB8D4B816B44EB47B0" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_4D105368B9B15EC1AA4E2DEEEEA32662" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IntangibleAssetsScheduleOfFutureAmortizationExpenseDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IntangibleAssetsScheduleOfWeightedAverageAmortizationPeriodDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_BD7032D5F87350ADA095EB7AC11BCB01" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_99B51B3E2DCB51DD998ADCB8E6D8F38D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_BD7032D5F87350ADA095EB7AC11BCB01" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_99B51B3E2DCB51DD998ADCB8E6D8F38D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_C49373C716C051219C23F81EB29F72CA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_99B51B3E2DCB51DD998ADCB8E6D8F38D" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_C49373C716C051219C23F81EB29F72CA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E9A864B1C1E27F45DE414742EE0C75B8_BE556B038F1F5930B5A14301D48E49D9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_C49373C716C051219C23F81EB29F72CA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E9A864B1C1E27F45DE414742EE0C75B8_BE556B038F1F5930B5A14301D48E49D9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43730802FBC0537DB52AE405A88424EA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_C49373C716C051219C23F81EB29F72CA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43730802FBC0537DB52AE405A88424EA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_6489282A20055ABD8DFB0059B832B2F1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43730802FBC0537DB52AE405A88424EA" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_6489282A20055ABD8DFB0059B832B2F1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherIntangibleAssetsMember" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_9695B816BC325D179EF2260796341611" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43730802FBC0537DB52AE405A88424EA" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_9695B816BC325D179EF2260796341611" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_FED7E0C9FE3D5FCE9567370CC36E4918" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_99B51B3E2DCB51DD998ADCB8E6D8F38D" xlink:to="loc_us-gaap_RangeAxis_FED7E0C9FE3D5FCE9567370CC36E4918" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_0E65916C4C1CCC78DEAC4742EE0DD3B9_BE556B038F1F5930B5A14301D48E49D9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_FED7E0C9FE3D5FCE9567370CC36E4918" xlink:to="loc_us-gaap_RangeMember_0E65916C4C1CCC78DEAC4742EE0DD3B9_BE556B038F1F5930B5A14301D48E49D9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_E57164C4BD64564CA418E58D4080C706" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_FED7E0C9FE3D5FCE9567370CC36E4918" xlink:to="loc_us-gaap_RangeMember_E57164C4BD64564CA418E58D4080C706" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_DA3F8172FE185E3B9805267CE1F6BAE7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_E57164C4BD64564CA418E58D4080C706" xlink:to="loc_us-gaap_WeightedAverageMember_DA3F8172FE185E3B9805267CE1F6BAE7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_FCF88D984B605E72844ED5B05A8E4866" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_BD7032D5F87350ADA095EB7AC11BCB01" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_FCF88D984B605E72844ED5B05A8E4866" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/IntangibleAssetsTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/Inventories" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/InventoriesScheduleOfInventoryComponentsDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/InventoriesTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/Investments" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/InvestmentsRangeOfShortTermInvestmentsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3547AE8CC4EC54A9ACFB8DD6FF4FEC6F" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_3DE921EB09215230A2CB7AD0816883C6" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_3547AE8CC4EC54A9ACFB8DD6FF4FEC6F" xlink:to="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_3DE921EB09215230A2CB7AD0816883C6" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_40D10BB3F27A515EB0D22B5177065CCB" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_3DE921EB09215230A2CB7AD0816883C6" xlink:to="loc_us-gaap_RangeAxis_40D10BB3F27A515EB0D22B5177065CCB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_C26561D577DAC626360D56E112BB0BA3_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_40D10BB3F27A515EB0D22B5177065CCB" xlink:to="loc_us-gaap_RangeMember_C26561D577DAC626360D56E112BB0BA3_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_6F611F8BF8B650869A16F0EFF61DD8D3" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_40D10BB3F27A515EB0D22B5177065CCB" xlink:to="loc_us-gaap_RangeMember_6F611F8BF8B650869A16F0EFF61DD8D3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_09C03F2582495B96853C71E3270ED499" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_6F611F8BF8B650869A16F0EFF61DD8D3" xlink:to="loc_us-gaap_MinimumMember_09C03F2582495B96853C71E3270ED499" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_751B38D9691E5FF99552E86D8B58B687" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_6F611F8BF8B650869A16F0EFF61DD8D3" xlink:to="loc_us-gaap_MaximumMember_751B38D9691E5FF99552E86D8B58B687" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_MaturityRangeHeldToMaturityShortTermInvestments" xlink:label="loc_livn_MaturityRangeHeldToMaturityShortTermInvestments_797C78109BE3596B900468DD3B7561C9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3547AE8CC4EC54A9ACFB8DD6FF4FEC6F" xlink:to="loc_livn_MaturityRangeHeldToMaturityShortTermInvestments_797C78109BE3596B900468DD3B7561C9" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/InvestmentsScheduleOfLongTermInvestmentsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfCostMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfCostMethodInvestmentsLineItems_6F0BB04049E55BFA9EBB6808D6EFCD17" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfCostMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfCostMethodInvestmentsTable_0BAA8DC37E0854528FB90959A71E2C3D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfCostMethodInvestmentsLineItems_6F0BB04049E55BFA9EBB6808D6EFCD17" xlink:to="loc_us-gaap_ScheduleOfCostMethodInvestmentsTable_0BAA8DC37E0854528FB90959A71E2C3D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4AA5C3BED81B5E0D893CBB296C1E9443" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCostMethodInvestmentsTable_0BAA8DC37E0854528FB90959A71E2C3D" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4AA5C3BED81B5E0D893CBB296C1E9443" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain_7A2A705625ABC543383D364FEEE12611_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4AA5C3BED81B5E0D893CBB296C1E9443" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain_7A2A705625ABC543383D364FEEE12611_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain_8061EB5BC8675FC58686A28A642AF2C2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4AA5C3BED81B5E0D893CBB296C1E9443" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain_8061EB5BC8675FC58686A28A642AF2C2" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_ImtheraMedicalIncMember" xlink:label="loc_livn_ImtheraMedicalIncMember_2280730FD8A051C1A8B40DB2B66A0748" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_8061EB5BC8675FC58686A28A642AF2C2" xlink:to="loc_livn_ImtheraMedicalIncMember_2280730FD8A051C1A8B40DB2B66A0748" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_CerbomedGmbhMember" xlink:label="loc_livn_CerbomedGmbhMember_AF0AB96BA08B566ABA7498FB02066237" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_8061EB5BC8675FC58686A28A642AF2C2" xlink:to="loc_livn_CerbomedGmbhMember_AF0AB96BA08B566ABA7498FB02066237" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_NumberOfCostMethodInvestments" xlink:label="loc_livn_NumberOfCostMethodInvestments_93A423D7367557EEA9BF65F0FD59BF1A" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCostMethodInvestmentsLineItems_6F0BB04049E55BFA9EBB6808D6EFCD17" xlink:to="loc_livn_NumberOfCostMethodInvestments_93A423D7367557EEA9BF65F0FD59BF1A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostMethodInvestmentsOriginalCost" xlink:label="loc_us-gaap_CostMethodInvestmentsOriginalCost_AC33C305CC1C5319A328F76CED83AEDA" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCostMethodInvestmentsLineItems_6F0BB04049E55BFA9EBB6808D6EFCD17" xlink:to="loc_us-gaap_CostMethodInvestmentsOriginalCost_AC33C305CC1C5319A328F76CED83AEDA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_FA111C896A865021BD2131A32D3AEA1F" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCostMethodInvestmentsLineItems_6F0BB04049E55BFA9EBB6808D6EFCD17" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_FA111C896A865021BD2131A32D3AEA1F" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/InvestmentsScheduleOfShortTermInvestmentsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_8F7684536ABA56ADA0FA1C1801F366A3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_F2237C052D7D5E32ADD09FF22661A1D2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_8F7684536ABA56ADA0FA1C1801F366A3" xlink:to="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_F2237C052D7D5E32ADD09FF22661A1D2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtSecurityAxis" xlink:label="loc_us-gaap_DebtSecurityAxis_295E29B289D45A7C907060678D0311A2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_F2237C052D7D5E32ADD09FF22661A1D2" xlink:to="loc_us-gaap_DebtSecurityAxis_295E29B289D45A7C907060678D0311A2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MajorTypesOfDebtSecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtSecuritiesDomain_883C61B48B307F052CD83FBF1FADC6E9_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtSecurityAxis_295E29B289D45A7C907060678D0311A2" xlink:to="loc_us-gaap_MajorTypesOfDebtSecuritiesDomain_883C61B48B307F052CD83FBF1FADC6E9_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MajorTypesOfDebtSecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtSecuritiesDomain_52AA1A3E47345E2489CAC5D4E492DD6B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtSecurityAxis_295E29B289D45A7C907060678D0311A2" xlink:to="loc_us-gaap_MajorTypesOfDebtSecuritiesDomain_52AA1A3E47345E2489CAC5D4E492DD6B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_860B40ECDB10500DB692C2551CF70E6B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtSecuritiesDomain_52AA1A3E47345E2489CAC5D4E492DD6B" xlink:to="loc_us-gaap_CertificatesOfDepositMember_860B40ECDB10500DB692C2551CF70E6B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember" xlink:label="loc_us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember_41D999DDA24E5E4D9CD5CB542DFFA4B7" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtSecuritiesDomain_52AA1A3E47345E2489CAC5D4E492DD6B" xlink:to="loc_us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember_41D999DDA24E5E4D9CD5CB542DFFA4B7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_HeldToMaturitySecuritiesCurrent" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesCurrent_BA5508825D0653168D54EE085B70B54B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_8F7684536ABA56ADA0FA1C1801F366A3" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesCurrent_BA5508825D0653168D54EE085B70B54B" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/InvestmentsTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/LongTermLiabilities" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/LongTermLiabilitiesDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/LongTermLiabilitiesTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/NewAccountingPronouncements" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_B344E958A9575E40A230618793CE6270" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_31D4707D61BB521690A698A40F4BA565" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_B344E958A9575E40A230618793CE6270" xlink:to="loc_us-gaap_StatementTable_31D4707D61BB521690A698A40F4BA565" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_E2DA7352302D5EB1A6A536473DFFE790" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_31D4707D61BB521690A698A40F4BA565" xlink:to="loc_us-gaap_RangeAxis_E2DA7352302D5EB1A6A536473DFFE790" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_BF96C23E1F03C94CE3B756E113104A57_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_E2DA7352302D5EB1A6A536473DFFE790" xlink:to="loc_us-gaap_RangeMember_BF96C23E1F03C94CE3B756E113104A57_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_3BB9107F1789564CB99E37767B1668FD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_E2DA7352302D5EB1A6A536473DFFE790" xlink:to="loc_us-gaap_RangeMember_3BB9107F1789564CB99E37767B1668FD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_EE08486B7E74540FA68B7ECE73F95B08" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_3BB9107F1789564CB99E37767B1668FD" xlink:to="loc_us-gaap_MinimumMember_EE08486B7E74540FA68B7ECE73F95B08" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_F45F6086E692529A8055512DE9BEB06E" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_3BB9107F1789564CB99E37767B1668FD" xlink:to="loc_us-gaap_MaximumMember_F45F6086E692529A8055512DE9BEB06E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiscalPeriodDuration" xlink:label="loc_us-gaap_FiscalPeriodDuration_EA3FCB788F625964BE4632F697A8B679" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_B344E958A9575E40A230618793CE6270" xlink:to="loc_us-gaap_FiscalPeriodDuration_EA3FCB788F625964BE4632F697A8B679" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_A28CDED11F6C5850BC65FAA4C74F56F1" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_B344E958A9575E40A230618793CE6270" xlink:to="loc_us-gaap_NumberOfOperatingSegments_A28CDED11F6C5850BC65FAA4C74F56F1" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesPolicy" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/PropertyPlantAndEquipment" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_F845167C15025DC388C2683E56DBCD75" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C67515DB047F5FA48BB2F691B0773A7F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_F845167C15025DC388C2683E56DBCD75" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C67515DB047F5FA48BB2F691B0773A7F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_254F8F9730825C7898598830ABB69C37" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C67515DB047F5FA48BB2F691B0773A7F" xlink:to="loc_us-gaap_RangeAxis_254F8F9730825C7898598830ABB69C37" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_56B4690EDFF602DE28AD3FBF1FCF486B_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_254F8F9730825C7898598830ABB69C37" xlink:to="loc_us-gaap_RangeMember_56B4690EDFF602DE28AD3FBF1FCF486B_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_90F305FE364A5B2DAE042F19556D1FB4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_254F8F9730825C7898598830ABB69C37" xlink:to="loc_us-gaap_RangeMember_90F305FE364A5B2DAE042F19556D1FB4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_0ECC27BFCA2B571881D7E70C4C86D718" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_90F305FE364A5B2DAE042F19556D1FB4" xlink:to="loc_us-gaap_MinimumMember_0ECC27BFCA2B571881D7E70C4C86D718" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_6B67C98A4F8B53E38359127555C015CB" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_90F305FE364A5B2DAE042F19556D1FB4" xlink:to="loc_us-gaap_MaximumMember_6B67C98A4F8B53E38359127555C015CB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3274B19B69A85497B01C921CFCE4B8F6" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C67515DB047F5FA48BB2F691B0773A7F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3274B19B69A85497B01C921CFCE4B8F6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_BC414A72969E100A5FA43FBF1FCF080C_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3274B19B69A85497B01C921CFCE4B8F6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_BC414A72969E100A5FA43FBF1FCF080C_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3274B19B69A85497B01C921CFCE4B8F6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_0749820D00AF58E29404FF5E2DC21EA1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:to="loc_us-gaap_LandMember_0749820D00AF58E29404FF5E2DC21EA1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_9F4A90CA5F4151E8B698E29DAA1C1095" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_9F4A90CA5F4151E8B698E29DAA1C1095" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_EquipmentSoftwareFurnitureAndFixturesMember" xlink:label="loc_livn_EquipmentSoftwareFurnitureAndFixturesMember_633879FE42C654639E5560FD82B79178" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:to="loc_livn_EquipmentSoftwareFurnitureAndFixturesMember_633879FE42C654639E5560FD82B79178" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_9943FDFD396E5E17AE3EC081B0FC7E92" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_9943FDFD396E5E17AE3EC081B0FC7E92" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_5F0A0C855FD35F4A8E50F68A974A6795" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3D31F332E617593BB4439AAA9CB494B8" xlink:to="loc_us-gaap_ConstructionInProgressMember_5F0A0C855FD35F4A8E50F68A974A6795" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_F3F21D5F80CE510FBFF6E6B0EE56FD7E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_F845167C15025DC388C2683E56DBCD75" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_F3F21D5F80CE510FBFF6E6B0EE56FD7E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_92E86D5669E65697962B5693A8DBB151" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_F845167C15025DC388C2683E56DBCD75" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_92E86D5669E65697962B5693A8DBB151" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_E3327FF944C258B7AEC565A2822F21AD" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_F845167C15025DC388C2683E56DBCD75" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_E3327FF944C258B7AEC565A2822F21AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_6AD5BEABAB6850ACA4ACA5429268EC8C" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_F845167C15025DC388C2683E56DBCD75" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_6AD5BEABAB6850ACA4ACA5429268EC8C" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/PropertyPlantAndEquipmentTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlans" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlansAllocationOfShareBasedCompensationCostsByExpenseCategoryDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_684DD400D3D65599BE1E29E0D154C1AF" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_609ED568140E5AFEAA817A2159BBCB25" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_684DD400D3D65599BE1E29E0D154C1AF" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_609ED568140E5AFEAA817A2159BBCB25" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_8682CBC76A3E552682575EE2E6C46EDF" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_609ED568140E5AFEAA817A2159BBCB25" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_8682CBC76A3E552682575EE2E6C46EDF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_BE4E2A60B9456F8BC304364FED94738D_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8682CBC76A3E552682575EE2E6C46EDF" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_BE4E2A60B9456F8BC304364FED94738D_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_777C1CAFF9AC50FC8A8CCB72E9822C94" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8682CBC76A3E552682575EE2E6C46EDF" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_777C1CAFF9AC50FC8A8CCB72E9822C94" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="loc_us-gaap_CostOfSalesMember_CE900F3476245598BFA1631517ACC742" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_777C1CAFF9AC50FC8A8CCB72E9822C94" xlink:to="loc_us-gaap_CostOfSalesMember_CE900F3476245598BFA1631517ACC742" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_C3C3E7DDF8975E9ABF071B67EF95EA68" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_777C1CAFF9AC50FC8A8CCB72E9822C94" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_C3C3E7DDF8975E9ABF071B67EF95EA68" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_DE206EB5C7825CB69E1473B5AE9EB935" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_777C1CAFF9AC50FC8A8CCB72E9822C94" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_DE206EB5C7825CB69E1473B5AE9EB935" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_BA0F69AF5C6056438B519B2EF1AA0176" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_684DD400D3D65599BE1E29E0D154C1AF" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_BA0F69AF5C6056438B519B2EF1AA0176" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_A136D9E2F68F51FAA2D62E8DF3A6B1FE" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_684DD400D3D65599BE1E29E0D154C1AF" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_A136D9E2F68F51FAA2D62E8DF3A6B1FE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_446DB7940FFA5F3FAECDEAC9FE5C3194" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_684DD400D3D65599BE1E29E0D154C1AF" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_446DB7940FFA5F3FAECDEAC9FE5C3194" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlansAllocationOfShareBasedCompensationCostsByTypeOfArrangementDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_313719D3C9A95F76AA0ED30B6BAC65A3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8AC298E964335F6E84FE4B92164D86DD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_313719D3C9A95F76AA0ED30B6BAC65A3" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8AC298E964335F6E84FE4B92164D86DD" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_0451681C8E015C759F437E7591C54E27" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_8AC298E964335F6E84FE4B92164D86DD" xlink:to="loc_us-gaap_AwardTypeAxis_0451681C8E015C759F437E7591C54E27" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_FE5E6387BFECC069B9304742EDF78592_BE556B038F1F5930B5A14301D48E49D9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_0451681C8E015C759F437E7591C54E27" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_FE5E6387BFECC069B9304742EDF78592_BE556B038F1F5930B5A14301D48E49D9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0D2CD1541CCB5DD19764C3A02FA26933" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_0451681C8E015C759F437E7591C54E27" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0D2CD1541CCB5DD19764C3A02FA26933" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_AB59A0932882548490F0B7E0166EB89F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0D2CD1541CCB5DD19764C3A02FA26933" xlink:to="loc_us-gaap_EmployeeStockOptionMember_AB59A0932882548490F0B7E0166EB89F" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_ServiceBasedRestrictedStockAndRestrictedStockUnitAwardsMember" xlink:label="loc_livn_ServiceBasedRestrictedStockAndRestrictedStockUnitAwardsMember_1FEC0EA7A9AC5D3EABA5D9F2C86F4695" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0D2CD1541CCB5DD19764C3A02FA26933" xlink:to="loc_livn_ServiceBasedRestrictedStockAndRestrictedStockUnitAwardsMember_1FEC0EA7A9AC5D3EABA5D9F2C86F4695" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_PerformanceBasedRestrictedShareAndRestrictedShareUnitMember" xlink:label="loc_livn_PerformanceBasedRestrictedShareAndRestrictedShareUnitMember_1E83DBEA2B6A57948BC961E3FF716246" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0D2CD1541CCB5DD19764C3A02FA26933" xlink:to="loc_livn_PerformanceBasedRestrictedShareAndRestrictedShareUnitMember_1E83DBEA2B6A57948BC961E3FF716246" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_1AB306738F5C5A05885AE247DCD6F8F0" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_313719D3C9A95F76AA0ED30B6BAC65A3" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_1AB306738F5C5A05885AE247DCD6F8F0" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/StockBasedIncentivePlansTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/StockholdersEquity" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/StockholdersEquityDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/SubsequentEventMergerWithSorin" xlink:type="extended" />
  <definitionLink xlink:role="http://www.livanova.cyberonics.com/role/SubsequentEventMergerWithSorinNarrativedetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_AEF5EF2778285378A65CA881FD341799" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_A3D4C89DD2AC52A69C8003E9B648D130" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_AEF5EF2778285378A65CA881FD341799" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_A3D4C89DD2AC52A69C8003E9B648D130" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_4608DDEE90E4563F8B7C8AEBBAAC9F4B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_A3D4C89DD2AC52A69C8003E9B648D130" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_4608DDEE90E4563F8B7C8AEBBAAC9F4B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_51ECF85ECE6716CF5F266388DC435985_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_4608DDEE90E4563F8B7C8AEBBAAC9F4B" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_51ECF85ECE6716CF5F266388DC435985_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ADC3338F7B8A5C2DAA2F8EB5D630DA6A" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_4608DDEE90E4563F8B7C8AEBBAAC9F4B" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ADC3338F7B8A5C2DAA2F8EB5D630DA6A" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_MergersMember" xlink:label="loc_livn_MergersMember_2DFB21BA977A562EB2B9080A2451DEF2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ADC3338F7B8A5C2DAA2F8EB5D630DA6A" xlink:to="loc_livn_MergersMember_2DFB21BA977A562EB2B9080A2451DEF2" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_SorinMergerMember" xlink:label="loc_livn_SorinMergerMember_428A1F73501A54D692AEC9E4A49CF62E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_livn_MergersMember_2DFB21BA977A562EB2B9080A2451DEF2" xlink:to="loc_livn_SorinMergerMember_428A1F73501A54D692AEC9E4A49CF62E" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_CyberonicsMergerMember" xlink:label="loc_livn_CyberonicsMergerMember_493B74C473CE52C48AD9D95325503FFC" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_livn_MergersMember_2DFB21BA977A562EB2B9080A2451DEF2" xlink:to="loc_livn_CyberonicsMergerMember_493B74C473CE52C48AD9D95325503FFC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_F9EFC56686B85AB08484571946A4C005" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_A3D4C89DD2AC52A69C8003E9B648D130" xlink:to="loc_dei_LegalEntityAxis_F9EFC56686B85AB08484571946A4C005" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_9389C37429C91BE9B7B16388DC45870D_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_F9EFC56686B85AB08484571946A4C005" xlink:to="loc_dei_EntityDomain_9389C37429C91BE9B7B16388DC45870D_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_C7552366A94350FAA4EE97D75C144D0C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_F9EFC56686B85AB08484571946A4C005" xlink:to="loc_dei_EntityDomain_C7552366A94350FAA4EE97D75C144D0C" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_LivaNovaPLCMember" xlink:label="loc_livn_LivaNovaPLCMember_FDC4119C6B045769ADFEF98FFC1EB74A" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_C7552366A94350FAA4EE97D75C144D0C" xlink:to="loc_livn_LivaNovaPLCMember_FDC4119C6B045769ADFEF98FFC1EB74A" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_SorinS.p.A.Member" xlink:label="loc_livn_SorinS.p.A.Member_6DD56C0607D15178838DF3A5F3910A78" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_C7552366A94350FAA4EE97D75C144D0C" xlink:to="loc_livn_SorinS.p.A.Member_6DD56C0607D15178838DF3A5F3910A78" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_0EA809E07A9A53C6AB7AA854BDF9FF2F" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_A3D4C89DD2AC52A69C8003E9B648D130" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_0EA809E07A9A53C6AB7AA854BDF9FF2F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_95E9F34E59A786EDC9206388DC46B7FC_337C0C205F3558AB9DAA7921E602753F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_0EA809E07A9A53C6AB7AA854BDF9FF2F" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_95E9F34E59A786EDC9206388DC46B7FC_337C0C205F3558AB9DAA7921E602753F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_8568390606A1556B8BFEAFA0D3CAA488" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_0EA809E07A9A53C6AB7AA854BDF9FF2F" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_8568390606A1556B8BFEAFA0D3CAA488" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_7519250BCC0452A6B3AC99C951B0BBC7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_8568390606A1556B8BFEAFA0D3CAA488" xlink:to="loc_us-gaap_SubsequentEventMember_7519250BCC0452A6B3AC99C951B0BBC7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_2D788B8096735C57A2BFE278B959C6E5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_AEF5EF2778285378A65CA881FD341799" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_2D788B8096735C57A2BFE278B959C6E5" xlink:type="arc" />
    <loc xlink:href="livn-20151018.xsd#livn_BusinessCombinationsSharesofCounterpartyToBeReceivedConversionRatio" xlink:label="loc_livn_BusinessCombinationsSharesofCounterpartyToBeReceivedConversionRatio_F5C39EE7B7AA5901BFA9862177322677" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_AEF5EF2778285378A65CA881FD341799" xlink:to="loc_livn_BusinessCombinationsSharesofCounterpartyToBeReceivedConversionRatio_F5C39EE7B7AA5901BFA9862177322677" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharePrice" xlink:label="loc_us-gaap_SharePrice_A204BBE7E45A5CCE885BA87D8B8FA1CD" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_AEF5EF2778285378A65CA881FD341799" xlink:to="loc_us-gaap_SharePrice_A204BBE7E45A5CCE885BA87D8B8FA1CD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E0FE4716C13E572AA84EA6C63ED3BA98" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_AEF5EF2778285378A65CA881FD341799" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E0FE4716C13E572AA84EA6C63ED3BA98" xlink:type="arc" />
  </definitionLink>
</linkbase>
