<?xml version="1.0" encoding="us-ascii"?>
<!--
Taxonomy Definition Links linkbase based on XBRL standard Version 2.1.
Created by UBmatrix Taxonomy Designer 3.0.2.2383 (2008-08-05 08:43).
Contact www.ubmatrix.com
Copyright (c) 2002-2014 UBmatrix inc., All Rights Reserved
Produced on 2014-03-21 21:26:38
-->
<linkbase
  xmlns="http://www.xbrl.org/2003/linkbase"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
  xsi:schemaLocation="
    http://www.xbrl.org/2003/linkbase
      http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd
    http://xbrl.org/2005/xbrldt  http://www.xbrl.org/2005/xbrldt-2005.xsd
    ">
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#ConsolidatedStatementsOfStockholdersEquity"
    roleURI="http://www.starbulk.com/20131231/role/ConsolidatedStatementsOfStockholdersEquity" />
  <arcroleRef xlink:type="simple"
    xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"
    arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" />
  <arcroleRef xlink:type="simple"
    xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"
    arcroleURI="http://xbrl.org/int/dim/arcrole/all" />
  <arcroleRef xlink:type="simple"
    xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"
    arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" />
  <arcroleRef xlink:type="simple"
    xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"
    arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" />
  <arcroleRef xlink:type="simple"
    xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"
    arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#TransactionsWithRelatedPartiesBalanceSheetTableDetails"
    roleURI="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesBalanceSheetTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#TransactionsWithRelatedPartiesStatementOfOperationsTableDetails"
    roleURI="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesStatementOfOperationsTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#FairValueDisclosuresTableDetais"
    roleURI="http://www.starbulk.com/20131231/role/FairValueDisclosuresGainLossRecognizedTableDetais" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#TransactionsWithRelatedPartiesAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesAdditionalInformationManagementDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#FairValueOfAcquiredTimeChartersAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/FairValueOfAcquiredTimeChartersDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#OtherOperationalGainDetails"
    roleURI="http://www.starbulk.com/20131231/role/OtherOperationalGainAdditionalInformationDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#BasisOfPresentationGeneralInformationTableDetails"
    roleURI="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#VesselsAndOtherFixedAssetsNetAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/VesselsAndOtherFixedAssetsNetDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#EquityIncentivePlanCompanysEquityIncentivePlansDetails"
    roleURI="http://www.starbulk.com/20131231/role/EquityIncentivePlanCompanysEquityIncentivePlansDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#TradeAccountsReceivableNetTableDetails"
    roleURI="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaidInCapitalShareRepurchasePlanDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#OtherOperationalLossAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/OtherOperationalLossDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#LongTermDebtComplianceAndAmendmentsDetails"
    roleURI="http://www.starbulk.com/20131231/role/LongTermDebtTermsCovenantsAndAmendmentsDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#LongTermDebtAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/LongTermDebtAmendmentTermsDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#FairValueDisclosuresFairValueMeasurementsTableDetails"
    roleURI="http://www.starbulk.com/20131231/role/FairValueDisclosuresFairValueMeasurementsTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#FairValueDisclosuresAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/FairValueDisclosuresAdditionalInformationDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#SubsequentEventsAdditionalInformationDetails"
    roleURI="http://www.starbulk.com/20131231/role/SubsequentEventsDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#LossesPerShareDetails"
    roleURI="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaid-inCapitalReverseStockSplitAdjustments" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#StatementOfFinancialPosistionParentheticals"
    roleURI="http://www.starbulk.com/20131231/role/ConsolidatedBalanceSheetParentheticals" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#TransactionsWithRelatedPartiesAdditionalInformationOtherDetails"
    roleURI="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesAdditionalInformationOtherDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#CharterersWithMoreThanTenPercent"
    roleURI="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationRiskConcentrationTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#BasisOfPresentationAndGeneralInformationAdditionalInformation"
    roleURI="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#FairValueTimeChartersAcquired"
    roleURI="http://www.starbulk.com/20131231/role/FairValueOfAcquiredTimeChartersPerVesselTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#PreferredCommonStockAndAdditionalPaidInCapitalEquityDetails"
    roleURI="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaidInCapitalEquityDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#LongtermDebtInformationPerLoanDetails"
    roleURI="http://www.starbulk.com/20131231/role/LongtermDebtInformationPerLoanDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#Disclosure-AccruedLiabilities"
    roleURI="http://www.starbulk.com/20131231/role/LongTermDebtDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#CommitmentsAndContingenciesDetails"
    roleURI="http://www.starbulk.com/20131231/role/CommitmentsAndContingenciesEnvironmentalDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#CommitmentsAndContengenciesLegalDetails"
    roleURI="http://www.starbulk.com/20131231/role/CommitmentsAndContingenciesLegalDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#SignificantAccountingPoliciesDetails"
    roleURI="http://www.starbulk.com/20131231/role/SignificantAccountingPoliciesDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#CommitmentsAndContigenciesLegalDescriptionDetails"
    roleURI="http://www.starbulk.com/20131231/role/CommitmentsAndContigenciesLegalDescriptionDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#BasisOfPresentationNewbuildingShips"
    roleURI="http://www.starbulk.com/20131231/role/BasisOfPresentationNewbuildingShips" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#BasisOfPresntationManagementAgreement"
    roleURI="http://www.starbulk.com/20131231/role/BasisOfPresntationManagementAgreement" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#TransactionsWithRelatedPartiesCapitalizedExpenses"
    roleURI="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesCapitalizedExpenses" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#FairValueNonRecurringBasis"
    roleURI="http://www.starbulk.com/20131231/role/FairValueNonRecurringBasis" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#AdvancesForVesselAcquisitionDetails"
    roleURI="http://www.starbulk.com/20131231/role/AdvancesForVesselAcquisitionDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#AdvancesForVesselsAcquisitionsTableDetails"
    roleURI="http://www.starbulk.com/20131231/role/AdvancesForVesselsAcquisitionsTableDetails" />
  <roleRef xlink:type="simple"
    xlink:href="sblk-20131231.xsd#IncomeTaxesDetails"
    roleURI="http://www.starbulk.com/20131231/role/IncomeTaxesDetails" />
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/ConsolidatedStatementsOfStockholdersEquity">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockholdersEquity"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockholdersEquity"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesIssued"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesIssued" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_CommonStockSharesIssued"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_NetIncomeLoss"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_NetIncomeLoss"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_IssuanceVestedNonVestedSharesAmortizationStockBasedCompensationValue"
      xlink:href="sblk-20131231.xsd#sblk_IssuanceVestedNonVestedSharesAmortizationStockBasedCompensationValue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="sblk_IssuanceVestedNonVestedSharesAmortizationStockBasedCompensationValue"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DividendsCommonStock"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DividendsCommonStock" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_DividendsCommonStock"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StatementTable"
      order="11"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementEquityComponentsAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementEquityComponentsAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityComponentDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_StatementEquityComponentsAxis"
      xlink:to="us-gaap_EquityComponentDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="us-gaap_CommonStockMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AdditionalPaidInCapitalMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="us-gaap_AdditionalPaidInCapitalMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RetainedEarningsMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RetainedEarningsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="us-gaap_RetainedEarningsMember"
      order="3"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/ConsolidatedStatementsOfStockholdersEquity">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementEquityComponentsAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityComponentDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_StatementEquityComponentsAxis"
      xlink:to="us-gaap_EquityComponentDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesBalanceSheetTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DueFromRelatedPartiesCurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_DueFromRelatedPartiesCurrent"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DueToRelatedPartiesCurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_DueToRelatedPartiesCurrent"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      order="3"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MaidenVoyageMember"
      xlink:href="sblk-20131231.xsd#sblk_MaidenVoyageMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_MaidenVoyageMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ManagementMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ManagementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="us-gaap_ManagementMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OceanbulkMaritimeMember"
      xlink:href="sblk-20131231.xsd#sblk_OceanbulkMaritimeMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_OceanbulkMaritimeMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterchartShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_InterchartShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_InterchartShippingMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CombineMarineLtdMember"
      xlink:href="sblk-20131231.xsd#sblk_CombineMarineLtdMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_CombineMarineLtdMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Oocape1HoldingsMember"
      xlink:href="sblk-20131231.xsd#sblk_Oocape1HoldingsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_Oocape1HoldingsMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PacificCapeShippingLlcMember"
      xlink:href="sblk-20131231.xsd#sblk_PacificCapeShippingLlcMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_PacificCapeShippingLlcMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GlobalCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_GlobalCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_GlobalCapeShippingMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SeaCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_SeaCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_SeaCapeShippingMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PremierVoyageMember"
      xlink:href="sblk-20131231.xsd#sblk_PremierVoyageMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_PremierVoyageMember"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SkyCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_SkyCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_SkyCapeShippingMember"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GlorySupraShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_GlorySupraShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_GlorySupraShippingMember"
      order="12"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ProductShippingTradingMember"
      xlink:href="sblk-20131231.xsd#sblk_ProductShippingTradingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_ProductShippingTradingMember"
      order="13"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesBalanceSheetTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesStatementOfOperationsTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SalesCommissionsAndFees"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SalesCommissionsAndFees" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_SalesCommissionsAndFees"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ServiceManagementCosts"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ServiceManagementCosts" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ServiceManagementCosts"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_NonExecutiveDirectorsCompensation"
      xlink:href="sblk-20131231.xsd#sblk_NonExecutiveDirectorsCompensation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_NonExecutiveDirectorsCompensation"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommisionsOnSaleOfAssets"
      xlink:href="sblk-20131231.xsd#sblk_CommisionsOnSaleOfAssets" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_CommisionsOnSaleOfAssets"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PaymentsByRelatedPartiesOnBehalfOfReportingEntity"
      xlink:href="sblk-20131231.xsd#sblk_PaymentsByRelatedPartiesOnBehalfOfReportingEntity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_PaymentsByRelatedPartiesOnBehalfOfReportingEntity"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LeaseAndRentalExpense"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LeaseAndRentalExpense" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_LeaseAndRentalExpense"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ManagementFeesBaseRevenue"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ManagementFeesBaseRevenue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ManagementFeesBaseRevenue"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      order="8"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ManagementMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ManagementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="us-gaap_ManagementMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OceanbulkMaritimeMember"
      xlink:href="sblk-20131231.xsd#sblk_OceanbulkMaritimeMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_OceanbulkMaritimeMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterchartShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_InterchartShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_InterchartShippingMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ExecutiveOfficerMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ExecutiveOfficerMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="us-gaap_ExecutiveOfficerMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CombineMarineLtdMember"
      xlink:href="sblk-20131231.xsd#sblk_CombineMarineLtdMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_CombineMarineLtdMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CombineMarineIncMember"
      xlink:href="sblk-20131231.xsd#sblk_CombineMarineIncMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_CombineMarineIncMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MaidenVoyageMember"
      xlink:href="sblk-20131231.xsd#sblk_MaidenVoyageMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_MaidenVoyageMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Oocape1HoldingsMember"
      xlink:href="sblk-20131231.xsd#sblk_Oocape1HoldingsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_Oocape1HoldingsMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GlorySupraShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_GlorySupraShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_GlorySupraShippingMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PremierVoyageMember"
      xlink:href="sblk-20131231.xsd#sblk_PremierVoyageMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_PremierVoyageMember"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SeaCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_SeaCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_SeaCapeShippingMember"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SkyCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_SkyCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_SkyCapeShippingMember"
      order="12"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PacificCapeShippingLlcMember"
      xlink:href="sblk-20131231.xsd#sblk_PacificCapeShippingLlcMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_PacificCapeShippingLlcMember"
      order="13"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ProductShippingTradingMember"
      xlink:href="sblk-20131231.xsd#sblk_ProductShippingTradingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_ProductShippingTradingMember"
      order="14"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueDisclosuresGainLossRecognizedTableDetais">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_GainLossOnDerivativeInstrumentsNetPretax"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_GainLossOnDerivativeInstrumentsNetPretax"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_DerivativeTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeByNatureAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeByNatureAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DerivativeTable" xlink:to="us-gaap_DerivativeByNatureAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DerivativeByNatureAxis"
      xlink:to="us-gaap_DerivativeNameDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FreightContractsMember"
      xlink:href="sblk-20131231.xsd#sblk_FreightContractsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_FreightContractsMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_BunkerContractsMember"
      xlink:href="sblk-20131231.xsd#sblk_BunkerContractsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_BunkerContractsMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterestRateSwapsMember"
      xlink:href="sblk-20131231.xsd#sblk_InterestRateSwapsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_InterestRateSwapsMember"
      order="3"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueDisclosuresGainLossRecognizedTableDetais">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeByNatureAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeByNatureAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_DerivativeByNatureAxis"
      xlink:to="us-gaap_DerivativeNameDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesAdditionalInformationManagementDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_AnnualConsultingFees"
      xlink:href="sblk-20131231.xsd#sblk_AnnualConsultingFees" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_AnnualConsultingFees"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_OfficersCompensation"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OfficersCompensation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_OfficersCompensation"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PaymentsForPostemploymentBenefits"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsForPostemploymentBenefits" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_PaymentsForPostemploymentBenefits"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod"
      xlink:href="sblk-20131231.xsd#sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SharePrice"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharePrice" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_SharePrice"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      order="8"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ChiefFinancialOfficerMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ChiefFinancialOfficerMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="us-gaap_ChiefFinancialOfficerMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FormerCeoMember"
      xlink:href="sblk-20131231.xsd#sblk_FormerCeoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_FormerCeoMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FormerCfoMember"
      xlink:href="sblk-20131231.xsd#sblk_FormerCfoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_FormerCfoMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FormerCeoAndCfoMember"
      xlink:href="sblk-20131231.xsd#sblk_FormerCeoAndCfoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_FormerCeoAndCfoMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ChiefOperatingOfficerMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ChiefOperatingOfficerMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="us-gaap_ChiefOperatingOfficerMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ChiefExecutiveOfficerMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ChiefExecutiveOfficerMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="us-gaap_ChiefExecutiveOfficerMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ExecutiveOfficersMember"
      xlink:href="sblk-20131231.xsd#sblk_ExecutiveOfficersMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_ExecutiveOfficersMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ManagementDirectorsMember"
      xlink:href="sblk-20131231.xsd#sblk_ManagementDirectorsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_ManagementDirectorsMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"
      xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FirstInstallmentMember"
      xlink:href="sblk-20131231.xsd#sblk_FirstInstallmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      xlink:to="sblk_FirstInstallmentMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SecondInstallmentMember"
      xlink:href="sblk-20131231.xsd#sblk_SecondInstallmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      xlink:to="sblk_SecondInstallmentMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_RenewalConsultingAgreementMember"
      xlink:href="sblk-20131231.xsd#sblk_RenewalConsultingAgreementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      xlink:to="sblk_RenewalConsultingAgreementMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ThirdInstallmentMember"
      xlink:href="sblk-20131231.xsd#sblk_ThirdInstallmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      xlink:to="sblk_ThirdInstallmentMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ForeignCurrencyExchangeRateTranslation1"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ForeignCurrencyExchangeRateTranslation1"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_GeneralAndAdministrativeExpense"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_GeneralAndAdministrativeExpense"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DueToRelatedPartiesCurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_DueToRelatedPartiesCurrent"
      order="11"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesAdditionalInformationManagementDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"
      xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueOfAcquiredTimeChartersDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_WriteOffOfUnamortizedFairValueOfBelowMarketAcquiredTimeCharterOnVesselRedelivery"
      xlink:href="sblk-20131231.xsd#sblk_WriteOffOfUnamortizedFairValueOfBelowMarketAcquiredTimeCharterOnVesselRedelivery" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_WriteOffOfUnamortizedFairValueOfBelowMarketAcquiredTimeCharterOnVesselRedelivery"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FuelQuantity"
      xlink:href="sblk-20131231.xsd#sblk_FuelQuantity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_FuelQuantity"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GrossDailyCharterRate"
      xlink:href="sblk-20131231.xsd#sblk_GrossDailyCharterRate" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_GrossDailyCharterRate"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselRedeliveryDate"
      xlink:href="sblk-20131231.xsd#sblk_VesselRedeliveryDate" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselRedeliveryDate"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_WriteOffOfUnamortizedTimeCharterTerminationDeferredRevenue"
      xlink:href="sblk-20131231.xsd#sblk_WriteOffOfUnamortizedTimeCharterTerminationDeferredRevenue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_WriteOffOfUnamortizedTimeCharterTerminationDeferredRevenue"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="6"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarCosmoMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarOmicronMember"
      xlink:href="sblk-20131231.xsd#sblk_StarOmicronMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarOmicronMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaAmountReceivedInCashMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaAmountReceivedInCashMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaAmountReceivedInCashMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaAmountReceivedForFuelsMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaAmountReceivedForFuelsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaAmountReceivedForFuelsMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_GainLossOnContractTermination"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnContractTermination" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_GainLossOnContractTermination"
      order="7"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueOfAcquiredTimeChartersDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/OtherOperationalGainAdditionalInformationDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ComponentOfOtherIncomeNonoperatingLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComponentOfOtherIncomeNonoperatingLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_OtherIncome"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherIncome" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ComponentOfOtherIncomeNonoperatingLineItems"
      xlink:to="us-gaap_OtherIncome"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_ComponentOfOtherIncomeNonoperatingLineItems"
      xlink:to="us-gaap_StatementTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="dei_LegalEntityAxis"
      xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="dei_LegalEntityAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_TransactionDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TransactionDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="dei_LegalEntityAxis" xlink:to="us-gaap_TransactionDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommercialClaimMember"
      xlink:href="sblk-20131231.xsd#sblk_CommercialClaimMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_CommercialClaimMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullAndMachineryClaimMember"
      xlink:href="sblk-20131231.xsd#sblk_HullAndMachineryClaimMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_HullAndMachineryClaimMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_TmtCoMember"
      xlink:href="sblk-20131231.xsd#sblk_TmtCoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_TmtCoMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OldendorffGmbhCoMember"
      xlink:href="sblk-20131231.xsd#sblk_OldendorffGmbhCoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_OldendorffGmbhCoMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_BhatiaInternationalLtdMember"
      xlink:href="sblk-20131231.xsd#sblk_BhatiaInternationalLtdMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_BhatiaInternationalLtdMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_KoreaLineCorporationMember"
      xlink:href="sblk-20131231.xsd#sblk_KoreaLineCorporationMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_KoreaLineCorporationMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SaleOfFutureCommercialClaimsProceedsMember"
      xlink:href="sblk-20131231.xsd#sblk_SaleOfFutureCommercialClaimsProceedsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_SaleOfFutureCommercialClaimsProceedsMember"
      order="7"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/OtherOperationalGainAdditionalInformationDetails">
    <loc xlink:type="locator"
      xlink:label="dei_LegalEntityAxis"
      xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_TransactionDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TransactionDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="dei_LegalEntityAxis" xlink:to="us-gaap_TransactionDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselCapacity"
      xlink:href="sblk-20131231.xsd#sblk_VesselCapacity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselCapacity"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselYearBuilt"
      xlink:href="sblk-20131231.xsd#sblk_VesselYearBuilt" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselYearBuilt"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DeliveryDateVessel"
      xlink:href="sblk-20131231.xsd#sblk_DeliveryDateVessel" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_DeliveryDateVessel"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="4"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarAuroraMember"
      xlink:href="sblk-20131231.xsd#sblk_StarAuroraMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarAuroraMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBigMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBigMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBigMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBorealisMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBorealisMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBorealisMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarMegaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarMegaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarMegaMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarPolarisMember"
      xlink:href="sblk-20131231.xsd#sblk_StarPolarisMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarPolarisMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarCosmoMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarDeltaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarDeltaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarDeltaMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarEpsilonMember"
      xlink:href="sblk-20131231.xsd#sblk_StarEpsilonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarEpsilonMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarGammaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarGammaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarGammaMember"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarKappaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarKappaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarKappaMember"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarOmicronMember"
      xlink:href="sblk-20131231.xsd#sblk_StarOmicronMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarOmicronMember"
      order="12"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarThetaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarThetaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarThetaMember"
      order="13"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarZetaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarZetaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarZetaMember"
      order="14"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarAlphaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarAlphaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarAlphaMember"
      order="15"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBetaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBetaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBetaMember"
      order="16"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarYpsilonMember"
      xlink:href="sblk-20131231.xsd#sblk_StarYpsilonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarYpsilonMember"
      order="17"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarChallengerMember"
      xlink:href="sblk-20131231.xsd#sblk_StarChallengerMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarChallengerMember"
      order="18"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarFighterMember"
      xlink:href="sblk-20131231.xsd#sblk_StarFighterMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarFighterMember"
      order="19"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/VesselsAndOtherFixedAssetsNetDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SignificantAcquisitionsAndDisposalsDateOfTransactionForAcquisitionsOrDisposals"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SignificantAcquisitionsAndDisposalsDateOfTransactionForAcquisitionsOrDisposals" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_SignificantAcquisitionsAndDisposalsDateOfTransactionForAcquisitionsOrDisposals"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OtherVesselAcquisitionCosts"
      xlink:href="sblk-20131231.xsd#sblk_OtherVesselAcquisitionCosts" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_OtherVesselAcquisitionCosts"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GrossDailyCharterRate"
      xlink:href="sblk-20131231.xsd#sblk_GrossDailyCharterRate" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_GrossDailyCharterRate"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DryDockingCostCapitalized"
      xlink:href="sblk-20131231.xsd#sblk_DryDockingCostCapitalized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_DryDockingCostCapitalized"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselAcquisitionContractPrice"
      xlink:href="sblk-20131231.xsd#sblk_VesselAcquisitionContractPrice" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselAcquisitionContractPrice"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FuelQuantity"
      xlink:href="sblk-20131231.xsd#sblk_FuelQuantity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_FuelQuantity"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AddressCommissionPercentage"
      xlink:href="sblk-20131231.xsd#sblk_AddressCommissionPercentage" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_AddressCommissionPercentage"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_BrokerageCommissionPercentage"
      xlink:href="sblk-20131231.xsd#sblk_BrokerageCommissionPercentage" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_BrokerageCommissionPercentage"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselNet"
      xlink:href="sblk-20131231.xsd#sblk_VesselNet" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselNet"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_GainLossOnSaleOfPropertyPlantEquipment"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="12"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBigMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBigMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBigMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarMegaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarMegaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarMegaMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBorealisMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBorealisMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBorealisMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarYpsilonMember"
      xlink:href="sblk-20131231.xsd#sblk_StarYpsilonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarYpsilonMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarPolarisMember"
      xlink:href="sblk-20131231.xsd#sblk_StarPolarisMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarPolarisMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBorealisAndStarPolarisMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBorealisAndStarPolarisMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBorealisAndStarPolarisMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarFighter1Member"
      xlink:href="sblk-20131231.xsd#sblk_StarFighter1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarFighter1Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarChallenger1Member"
      xlink:href="sblk-20131231.xsd#sblk_StarChallenger1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarChallenger1Member"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselCapacity"
      xlink:href="sblk-20131231.xsd#sblk_VesselCapacity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselCapacity"
      order="13"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AssetImpairmentCharges"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetImpairmentCharges" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_AssetImpairmentCharges"
      order="14"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/EquityIncentivePlanCompanysEquityIncentivePlansDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"
      order="1"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PlanNameAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"
      xlink:to="us-gaap_PlanNameAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PlanNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EquityIncentivePlan2010Member"
      xlink:href="sblk-20131231.xsd#sblk_EquityIncentivePlan2010Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PlanNameDomain" xlink:to="sblk_EquityIncentivePlan2010Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EquityIncentivePlan2011Member"
      xlink:href="sblk-20131231.xsd#sblk_EquityIncentivePlan2011Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PlanNameDomain" xlink:to="sblk_EquityIncentivePlan2011Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EquityIncentivePlan2007Member"
      xlink:href="sblk-20131231.xsd#sblk_EquityIncentivePlan2007Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PlanNameDomain" xlink:to="sblk_EquityIncentivePlan2007Member"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EquityIncentivePlan2013Member"
      xlink:href="sblk-20131231.xsd#sblk_EquityIncentivePlan2013Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PlanNameDomain" xlink:to="sblk_EquityIncentivePlan2013Member"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FormerDirectorMember"
      xlink:href="sblk-20131231.xsd#sblk_FormerDirectorMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PlanNameDomain" xlink:to="sblk_FormerDirectorMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CompanyAndSubsidiariesDirectorsOfficersAndEmployeesMember"
      xlink:href="sblk-20131231.xsd#sblk_CompanyAndSubsidiariesDirectorsOfficersAndEmployeesMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PlanNameDomain" xlink:to="sblk_CompanyAndSubsidiariesDirectorsOfficersAndEmployeesMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DividendsPreferredStockCash"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DividendsPreferredStockCash" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_DividendsPreferredStockCash"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensation"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_ShareBasedCompensation"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDateFairValue"
      xlink:href="sblk-20131231.xsd#sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDateFairValue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"
      xlink:to="sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDateFairValue"
      order="10"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/EquityIncentivePlanCompanysEquityIncentivePlansDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PlanNameAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PlanNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaidInCapitalShareRepurchasePlanDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockRepurchaseProgramAuthorizedAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockRepurchaseProgramAuthorizedAmount"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StockRepurchaseProgramMaximumSharePrice"
      xlink:href="sblk-20131231.xsd#sblk_StockRepurchaseProgramMaximumSharePrice" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="sblk_StockRepurchaseProgramMaximumSharePrice"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StatementTable"
      order="6"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareRepurchaseProgramAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_ShareRepurchaseProgramAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareRepurchaseProgramDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_ShareRepurchaseProgramAxis"
      xlink:to="us-gaap_ShareRepurchaseProgramDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ReinstatementOfShareRepurchasePlanMember"
      xlink:href="sblk-20131231.xsd#sblk_ReinstatementOfShareRepurchasePlanMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareRepurchaseProgramDomain"
      xlink:to="sblk_ReinstatementOfShareRepurchasePlanMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_TreasuryStockMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ShareRepurchaseProgramDomain"
      xlink:to="us-gaap_TreasuryStockMember"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaidInCapitalShareRepurchasePlanDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareRepurchaseProgramAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareRepurchaseProgramDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_ShareRepurchaseProgramAxis"
      xlink:to="us-gaap_ShareRepurchaseProgramDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/OtherOperationalLossDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ComponentOfOtherExpenseNonoperatingLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComponentOfOtherExpenseNonoperatingLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_OtherExpenses"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherExpenses" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ComponentOfOtherExpenseNonoperatingLineItems"
      xlink:to="us-gaap_OtherExpenses"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_ComponentOfOtherExpenseNonoperatingLineItems"
      xlink:to="us-gaap_StatementTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="dei_LegalEntityAxis"
      xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="dei_LegalEntityAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_TransactionDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TransactionDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="dei_LegalEntityAxis" xlink:to="us-gaap_TransactionDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommercialClaim1Member"
      xlink:href="sblk-20131231.xsd#sblk_CommercialClaim1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_CommercialClaim1Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SaleOfFutureCommercialClaimsProceedsMember"
      xlink:href="sblk-20131231.xsd#sblk_SaleOfFutureCommercialClaimsProceedsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_SaleOfFutureCommercialClaimsProceedsMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarEpsilonAndStarKappa1Member"
      xlink:href="sblk-20131231.xsd#sblk_StarEpsilonAndStarKappa1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_TransactionDomain"
      xlink:to="sblk_StarEpsilonAndStarKappa1Member"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PercentageOfFutureProceedsSold"
      xlink:href="sblk-20131231.xsd#sblk_PercentageOfFutureProceedsSold" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ComponentOfOtherExpenseNonoperatingLineItems"
      xlink:to="sblk_PercentageOfFutureProceedsSold"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ProceedsFromLegalSettlements"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromLegalSettlements" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ComponentOfOtherExpenseNonoperatingLineItems"
      xlink:to="us-gaap_ProceedsFromLegalSettlements"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SaleOfFutureClaimsProceeds"
      xlink:href="sblk-20131231.xsd#sblk_SaleOfFutureClaimsProceeds" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ComponentOfOtherExpenseNonoperatingLineItems"
      xlink:to="sblk_SaleOfFutureClaimsProceeds"
      order="5"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/OtherOperationalLossDetails">
    <loc xlink:type="locator"
      xlink:label="dei_LegalEntityAxis"
      xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_TransactionDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TransactionDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="dei_LegalEntityAxis" xlink:to="us-gaap_TransactionDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/LongTermDebtTermsCovenantsAndAmendmentsDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_LoanAmendmentDisclosure"
      xlink:href="sblk-20131231.xsd#sblk_LoanAmendmentDisclosure" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_LoanAmendmentDisclosure"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentCovenantDescription"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentCovenantDescription"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentPaymentTerms"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentPaymentTerms" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentPaymentTerms"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentCovenantCompliance"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentCovenantCompliance" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentCovenantCompliance"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentTable"
      order="5"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DebtInstrumentTable"
      xlink:to="us-gaap_DebtInstrumentAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LongtermDebtTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DebtInstrumentAxis"
      xlink:to="us-gaap_LongtermDebtTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAgMember"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAgMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAgMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CreditAgricoleCorporateAndInvestmentBankMember"
      xlink:href="sblk-20131231.xsd#sblk_CreditAgricoleCorporateAndInvestmentBankMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CreditAgricoleCorporateAndInvestmentBankMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AbnAmroBankMember"
      xlink:href="sblk-20131231.xsd#sblk_AbnAmroBankMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_AbnAmroBankMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankAgMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankAgMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankAgMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAgAggregateFacilityMember"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAgAggregateFacilityMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAgAggregateFacilityMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAg2Member"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAg2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAg2Member"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HSHNordbankAG35KMember"
      xlink:href="sblk-20131231.xsd#sblk_HSHNordbankAG35KMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HSHNordbankAG35KMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_InformationByCategoryOfDebtSecurityAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InformationByCategoryOfDebtSecurityAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DebtInstrumentTable"
      xlink:to="us-gaap_InformationByCategoryOfDebtSecurityAxis"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_MajorTypesOfDebtSecuritiesDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MajorTypesOfDebtSecuritiesDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_InformationByCategoryOfDebtSecurityAxis"
      xlink:to="us-gaap_MajorTypesOfDebtSecuritiesDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Amendment2Member"
      xlink:href="sblk-20131231.xsd#sblk_Amendment2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_MajorTypesOfDebtSecuritiesDomain"
      xlink:to="sblk_Amendment2Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Amendment1Member"
      xlink:href="sblk-20131231.xsd#sblk_Amendment1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_MajorTypesOfDebtSecuritiesDomain"
      xlink:to="sblk_Amendment1Member"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/LongTermDebtTermsCovenantsAndAmendmentsDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LongtermDebtTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_DebtInstrumentAxis"
      xlink:to="us-gaap_LongtermDebtTypeDomain"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_InformationByCategoryOfDebtSecurityAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InformationByCategoryOfDebtSecurityAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_MajorTypesOfDebtSecuritiesDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MajorTypesOfDebtSecuritiesDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_InformationByCategoryOfDebtSecurityAxis"
      xlink:to="us-gaap_MajorTypesOfDebtSecuritiesDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/LongTermDebtAmendmentTermsDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_LoanInstallmentDeferred"
      xlink:href="sblk-20131231.xsd#sblk_LoanInstallmentDeferred" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_LoanInstallmentDeferred"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DebtInstrumentBasisSpreadOnVariableRateUnderAmendment"
      xlink:href="sblk-20131231.xsd#sblk_DebtInstrumentBasisSpreadOnVariableRateUnderAmendment" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_DebtInstrumentBasisSpreadOnVariableRateUnderAmendment"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PrepaymentOnLoan"
      xlink:href="sblk-20131231.xsd#sblk_PrepaymentOnLoan" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_PrepaymentOnLoan"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PaymentsOfDebtRestructuringCosts"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsOfDebtRestructuringCosts" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_PaymentsOfDebtRestructuringCosts"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DebtRestructuringCostPercentage"
      xlink:href="sblk-20131231.xsd#sblk_DebtRestructuringCostPercentage" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_DebtRestructuringCostPercentage"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EquityRaisingUndertaking"
      xlink:href="sblk-20131231.xsd#sblk_EquityRaisingUndertaking" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_EquityRaisingUndertaking"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentTable"
      order="8"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DebtInstrumentTable"
      xlink:to="us-gaap_DebtInstrumentAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LongtermDebtTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DebtInstrumentAxis"
      xlink:to="us-gaap_LongtermDebtTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAgMember"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAgMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAgMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankAgMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankAgMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankAgMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankSupramaxTrancheMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankSupramaxTrancheMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankSupramaxTrancheMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankSupramaxTrancheInstallmentsMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankSupramaxTrancheInstallmentsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankSupramaxTrancheInstallmentsMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankCapesizeTrancheMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankCapesizeTrancheMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankCapesizeTrancheMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAg2Member"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAg2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAg2Member"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAgAggregateFacilityMember"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAgAggregateFacilityMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAgAggregateFacilityMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankAg2Member"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankAg2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankAg2Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankSupramaxTrancheBalloonMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankSupramaxTrancheBalloonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankSupramaxTrancheBalloonMember"
      order="9"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueDisclosuresFairValueMeasurementsTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselNet"
      xlink:href="sblk-20131231.xsd#sblk_VesselNet" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"
      xlink:to="sblk_VesselNet"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"
      xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"
      xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueInputsLevel1Member"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:to="us-gaap_FairValueInputsLevel1Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueInputsLevel2Member"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:to="us-gaap_FairValueInputsLevel2Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueInputsLevel3Member"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel3Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:to="us-gaap_FairValueInputsLevel3Member"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarYpsilonMember"
      xlink:href="sblk-20131231.xsd#sblk_StarYpsilonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarYpsilonMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarCosmoMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarDeltaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarDeltaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarDeltaMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarEpsilonMember"
      xlink:href="sblk-20131231.xsd#sblk_StarEpsilonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarEpsilonMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarGammaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarGammaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarGammaMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarKappaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarKappaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarKappaMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarOmicronMember"
      xlink:href="sblk-20131231.xsd#sblk_StarOmicronMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarOmicronMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarThetaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarThetaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarThetaMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarZetaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarZetaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarZetaMember"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AssetImpairmentCharges"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetImpairmentCharges" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"
      xlink:to="us-gaap_AssetImpairmentCharges"
      order="3"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueDisclosuresFairValueMeasurementsTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueDisclosuresAdditionalInformationDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_DerivativeTable"
      order="1"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeByNatureAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeByNatureAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DerivativeTable" xlink:to="us-gaap_DerivativeByNatureAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DerivativeByNatureAxis"
      xlink:to="us-gaap_DerivativeNameDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FreightAndBunkerContractsMember"
      xlink:href="sblk-20131231.xsd#sblk_FreightAndBunkerContractsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_FreightAndBunkerContractsMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FreightContractsMember"
      xlink:href="sblk-20131231.xsd#sblk_FreightContractsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_FreightContractsMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_BunkerContractsMember"
      xlink:href="sblk-20131231.xsd#sblk_BunkerContractsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_BunkerContractsMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterestRateSwap1Member"
      xlink:href="sblk-20131231.xsd#sblk_InterestRateSwap1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_InterestRateSwap1Member"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterestRateSwap2Member"
      xlink:href="sblk-20131231.xsd#sblk_InterestRateSwap2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_InterestRateSwap2Member"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DerivativeTable" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis"
      xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_FairValueInputsLevel1Member"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"
      xlink:to="us-gaap_FairValueInputsLevel1Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_NumberOfInterestRateDerivativesHeld"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NumberOfInterestRateDerivativesHeld" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_NumberOfInterestRateDerivativesHeld"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeAssetNotionalAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeAssetNotionalAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_DerivativeAssetNotionalAmount"
      order="3"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/SubsequentEventsDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_SubsequentEventLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_DailyManagementFee"
      xlink:href="sblk-20131231.xsd#sblk_DailyManagementFee" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_DailyManagementFee"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SubsequentEventTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_SubsequentEventTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_SubsequentEventTable"
      xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSiriusMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSiriusMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_StarSiriusMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarVegaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarVegaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_StarVegaMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSiriusStarVegaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSiriusStarVegaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_StarSiriusStarVegaMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterchartServicesAgreementMember"
      xlink:href="sblk-20131231.xsd#sblk_InterchartServicesAgreementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_InterchartServicesAgreementMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MadredeusMember"
      xlink:href="sblk-20131231.xsd#sblk_MadredeusMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_MadredeusMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AmamiMember"
      xlink:href="sblk-20131231.xsd#sblk_AmamiMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_AmamiMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PendulumMember"
      xlink:href="sblk-20131231.xsd#sblk_PendulumMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_PendulumMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankAg3Member"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankAg3Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_HshNordbankAg3Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MercurialVirgoMember"
      xlink:href="sblk-20131231.xsd#sblk_MercurialVirgoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_MercurialVirgoMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNo1372Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNo1372Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_HullNo1372Member"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNo1371Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNo1371Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_HullNo1371Member"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNo1371AndHullNo1372Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNo1371AndHullNo1372Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_HullNo1371AndHullNo1372Member"
      order="12"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EquityIncentivePlan2014Member"
      xlink:href="sblk-20131231.xsd#sblk_EquityIncentivePlan2014Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_EquityIncentivePlan2014Member"
      order="13"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_UpfrontHireFeesMember"
      xlink:href="sblk-20131231.xsd#sblk_UpfrontHireFeesMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_UpfrontHireFeesMember"
      order="14"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HandlingFeesMember"
      xlink:href="sblk-20131231.xsd#sblk_HandlingFeesMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_HandlingFeesMember"
      order="15"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ChiefExecutiveOfficerFirstInstallmentMember"
      xlink:href="sblk-20131231.xsd#sblk_ChiefExecutiveOfficerFirstInstallmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_ChiefExecutiveOfficerFirstInstallmentMember"
      order="16"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentFaceAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_DebtInstrumentFaceAmount"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AddressCommissionPercentage"
      xlink:href="sblk-20131231.xsd#sblk_AddressCommissionPercentage" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_AddressCommissionPercentage"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselAcquisitionContractPrice"
      xlink:href="sblk-20131231.xsd#sblk_VesselAcquisitionContractPrice" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_VesselAcquisitionContractPrice"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselCapacity"
      xlink:href="sblk-20131231.xsd#sblk_VesselCapacity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_VesselCapacity"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GrossDailyCharterRate"
      xlink:href="sblk-20131231.xsd#sblk_GrossDailyCharterRate" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_GrossDailyCharterRate"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DebtInstrumentAmountDrawnDown"
      xlink:href="sblk-20131231.xsd#sblk_DebtInstrumentAmountDrawnDown" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_DebtInstrumentAmountDrawnDown"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SharePrice"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharePrice" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_SharePrice"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MonthlyManagementFee"
      xlink:href="sblk-20131231.xsd#sblk_MonthlyManagementFee" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_MonthlyManagementFee"
      order="12"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SignificantAcquisitionsAndDisposalsDateOfTransactionForAcquisitionsOrDisposals"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SignificantAcquisitionsAndDisposalsDateOfTransactionForAcquisitionsOrDisposals" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_SignificantAcquisitionsAndDisposalsDateOfTransactionForAcquisitionsOrDisposals"
      order="13"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PaymentsToAcquireBusinessesGross"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_PaymentsToAcquireBusinessesGross"
      order="14"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_EquityMethodInvestmentOwnershipPercentage"
      order="15"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited"
      order="16"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ServicesAgreementAnnualLumpFeeRemuneration"
      xlink:href="sblk-20131231.xsd#sblk_ServicesAgreementAnnualLumpFeeRemuneration" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="sblk_ServicesAgreementAnnualLumpFeeRemuneration"
      order="17"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ForeignCurrencyExchangeRateTranslation1"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_ForeignCurrencyExchangeRateTranslation1"
      order="18"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"
      order="19"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues"
      order="20"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AccountsPayableTradeCurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsPayableTradeCurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_AccountsPayableTradeCurrent"
      order="21"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DueToRelatedPartiesCurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_SubsequentEventLineItems"
      xlink:to="us-gaap_DueToRelatedPartiesCurrent"
      order="22"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaid-inCapitalReverseStockSplitAdjustments">
    <loc xlink:type="locator"
      xlink:label="sblk_ReverseStockSplitLineItems"
      xlink:href="sblk-20131231.xsd#sblk_ReverseStockSplitLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockParOrStatedValuePerShare"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="sblk_ReverseStockSplitLineItems"
      xlink:to="us-gaap_CommonStockParOrStatedValuePerShare"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesOutstanding"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesOutstanding" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="sblk_ReverseStockSplitLineItems"
      xlink:to="us-gaap_CommonStockSharesOutstanding"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesIssued"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesIssued" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="sblk_ReverseStockSplitLineItems"
      xlink:to="us-gaap_CommonStockSharesIssued"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="sblk_ReverseStockSplitLineItems"
      xlink:to="us-gaap_StatementTable"
      order="4"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementClassOfStockAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementClassOfStockAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ReverseStockSplitDomain"
      xlink:href="sblk-20131231.xsd#sblk_ReverseStockSplitDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_StatementClassOfStockAxis"
      xlink:to="sblk_ReverseStockSplitDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PriorToReverseStockSplitAdjustmentMember"
      xlink:href="sblk-20131231.xsd#sblk_PriorToReverseStockSplitAdjustmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="sblk_ReverseStockSplitDomain"
      xlink:to="sblk_PriorToReverseStockSplitAdjustmentMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AfterReverseStockSplitAdjustmentMember"
      xlink:href="sblk-20131231.xsd#sblk_AfterReverseStockSplitAdjustmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="sblk_ReverseStockSplitDomain"
      xlink:to="sblk_AfterReverseStockSplitAdjustmentMember"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaid-inCapitalReverseStockSplitAdjustments">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementClassOfStockAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" />
    <loc xlink:type="locator"
      xlink:label="sblk_ReverseStockSplitDomain"
      xlink:href="sblk-20131231.xsd#sblk_ReverseStockSplitDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_StatementClassOfStockAxis"
      xlink:to="sblk_ReverseStockSplitDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/ConsolidatedBalanceSheetParentheticals">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesOutstanding"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesOutstanding" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_CommonStockSharesOutstanding"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockSharesAuthorized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_PreferredStockSharesAuthorized"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockSharesIssued"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockSharesIssued" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_PreferredStockSharesIssued"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockSharesOutstanding"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_PreferredStockSharesOutstanding"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockParOrStatedValuePerShare"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_CommonStockParOrStatedValuePerShare"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesAuthorized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesAuthorized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_CommonStockSharesAuthorized"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesIssued"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesIssued" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_CommonStockSharesIssued"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StatementTable"
      order="9"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementEquityComponentsAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementEquityComponentsAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityComponentDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_StatementEquityComponentsAxis"
      xlink:to="us-gaap_EquityComponentDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="us-gaap_CommonStockMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="us-gaap_PreferredStockMember"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/ConsolidatedBalanceSheetParentheticals">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementEquityComponentsAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityComponentDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_StatementEquityComponentsAxis"
      xlink:to="us-gaap_EquityComponentDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesAdditionalInformationOtherDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_DailyManagementFee"
      xlink:href="sblk-20131231.xsd#sblk_DailyManagementFee" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_DailyManagementFee"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_RentExpensePerMonth"
      xlink:href="sblk-20131231.xsd#sblk_RentExpensePerMonth" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_RentExpensePerMonth"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      order="3"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MaidenVoyageMember"
      xlink:href="sblk-20131231.xsd#sblk_MaidenVoyageMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_MaidenVoyageMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CombineMarineIncMember"
      xlink:href="sblk-20131231.xsd#sblk_CombineMarineIncMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_CombineMarineIncMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CombineMarineLtdMember"
      xlink:href="sblk-20131231.xsd#sblk_CombineMarineLtdMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_CombineMarineLtdMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Oocape1HoldingsMember"
      xlink:href="sblk-20131231.xsd#sblk_Oocape1HoldingsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_Oocape1HoldingsMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OceanbulkMaritimeMember"
      xlink:href="sblk-20131231.xsd#sblk_OceanbulkMaritimeMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_OceanbulkMaritimeMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ProductShippingTradingMember"
      xlink:href="sblk-20131231.xsd#sblk_ProductShippingTradingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_ProductShippingTradingMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SkyCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_SkyCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_SkyCapeShippingMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GlorySupraShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_GlorySupraShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_GlorySupraShippingMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SeaCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_SeaCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_SeaCapeShippingMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PacificCapeShippingLlcMember"
      xlink:href="sblk-20131231.xsd#sblk_PacificCapeShippingLlcMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_PacificCapeShippingLlcMember"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GlobalCapeShippingMember"
      xlink:href="sblk-20131231.xsd#sblk_GlobalCapeShippingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_GlobalCapeShippingMember"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselAcquisitionCommissionPercentage"
      xlink:href="sblk-20131231.xsd#sblk_VesselAcquisitionCommissionPercentage" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_VesselAcquisitionCommissionPercentage"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_RelatedPartiesCommissionsFees"
      xlink:href="sblk-20131231.xsd#sblk_RelatedPartiesCommissionsFees" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_RelatedPartiesCommissionsFees"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FlatFeePerVessel"
      xlink:href="sblk-20131231.xsd#sblk_FlatFeePerVessel" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_FlatFeePerVessel"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ForeignCurrencyExchangeRateTranslation1"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ForeignCurrencyExchangeRateTranslation1"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ManagementFeesBaseRevenue"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ManagementFeesBaseRevenue" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ManagementFeesBaseRevenue"
      order="9"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationRiskConcentrationTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_ConcentrationRiskLineItems"
      xlink:to="us-gaap_ConcentrationRiskTable"
      order="1"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ConcentrationRiskTable"
      xlink:to="us-gaap_ConcentrationRiskByBenchmarkAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_ConcentrationRiskByBenchmarkAxis"
      xlink:to="us-gaap_ConcentrationRiskBenchmarkDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer2Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer2Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer3Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer3Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer3Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer4Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer4Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer4Member"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer5Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer5Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer5Member"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer6Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer6Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer6Member"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer7Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer7Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer7Member"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer8Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer8Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer8Member"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Charterer1Member"
      xlink:href="sblk-20131231.xsd#sblk_Charterer1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:to="sblk_Charterer1Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskPercentage1"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ConcentrationRiskLineItems"
      xlink:to="us-gaap_ConcentrationRiskPercentage1"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationRiskConcentrationTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_ConcentrationRiskByBenchmarkAxis"
      xlink:to="us-gaap_ConcentrationRiskBenchmarkDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/BasisOfPresentationAndGeneralInformationDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_StockholdersEquityReverseStockSplitRatio"
      xlink:href="sblk-20131231.xsd#sblk_StockholdersEquityReverseStockSplitRatio" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_StockholdersEquityReverseStockSplitRatio"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PublicOfferingMember"
      xlink:href="sblk-20131231.xsd#sblk_PublicOfferingMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_PublicOfferingMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PrivatePlacementMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PrivatePlacementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="us-gaap_PrivatePlacementMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MasterAgreementMember"
      xlink:href="sblk-20131231.xsd#sblk_MasterAgreementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_MasterAgreementMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_TmtAndAffiliatesMember"
      xlink:href="sblk-20131231.xsd#sblk_TmtAndAffiliatesMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_TmtAndAffiliatesMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarbulkSaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarbulkSaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarbulkSaMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DailyManagementFee"
      xlink:href="sblk-20131231.xsd#sblk_DailyManagementFee" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_DailyManagementFee"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="dei_EntityIncorporationDateOfIncorporation"
      xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityIncorporationDateOfIncorporation" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="dei_EntityIncorporationDateOfIncorporation"
      order="4"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueOfAcquiredTimeChartersPerVesselTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_FairValueOfAboveMarketAcquiredTimeCharterGross"
      xlink:href="sblk-20131231.xsd#sblk_FairValueOfAboveMarketAcquiredTimeCharterGross" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_FairValueOfAboveMarketAcquiredTimeCharterGross"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FairValueOfAboveMarketAcquiredTimeCharter"
      xlink:href="sblk-20131231.xsd#sblk_FairValueOfAboveMarketAcquiredTimeCharter" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_FairValueOfAboveMarketAcquiredTimeCharter"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AmortizationOfFairValueOfAboveMarketAcquiredTimeCharter"
      xlink:href="sblk-20131231.xsd#sblk_AmortizationOfFairValueOfAboveMarketAcquiredTimeCharter" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_AmortizationOfFairValueOfAboveMarketAcquiredTimeCharter"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AmortizationOfFairValueOfBelowMarketAcquiredTimeCharter"
      xlink:href="sblk-20131231.xsd#sblk_AmortizationOfFairValueOfBelowMarketAcquiredTimeCharter" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_AmortizationOfFairValueOfBelowMarketAcquiredTimeCharter"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FairValueOfBelowMarketAcquiredTimeCharterGross"
      xlink:href="sblk-20131231.xsd#sblk_FairValueOfBelowMarketAcquiredTimeCharterGross" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_FairValueOfBelowMarketAcquiredTimeCharterGross"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_FairValueOfBelowMarketAcquiredTimeCharter"
      xlink:href="sblk-20131231.xsd#sblk_FairValueOfBelowMarketAcquiredTimeCharter" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_FairValueOfBelowMarketAcquiredTimeCharter"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="7"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarCosmoMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBigMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBigMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBigMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarMegaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarMegaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarMegaMember"
      order="3"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaidInCapitalEquityDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_ClassOfStockLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ClassOfStockLineItems"
      xlink:to="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityIssuancePerShareAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityIssuancePerShareAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_EquityIssuancePerShareAmount"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockSharesAuthorized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesAuthorized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_CommonStockSharesAuthorized"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_CommonStockParOrStatedValuePerShare"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_CommonStockParOrStatedValuePerShare"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForNoncashConsideration"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForNoncashConsideration" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForNoncashConsideration"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_ClassOfStockLineItems"
      xlink:to="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockSharesAuthorized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_PreferredStockSharesAuthorized"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockSharesIssued"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockSharesIssued" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract"
      xlink:to="us-gaap_PreferredStockSharesIssued"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_ClassOfStockLineItems"
      xlink:to="us-gaap_StatementTable"
      order="3"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementEquityComponentsAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementEquityComponentsAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityComponentDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_StatementEquityComponentsAxis"
      xlink:to="us-gaap_EquityComponentDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PreferredStockMember"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PreferredStockMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="us-gaap_PreferredStockMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommonStock1Member"
      xlink:href="sblk-20131231.xsd#sblk_CommonStock1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_EquityComponentDomain"
      xlink:to="sblk_CommonStock1Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MasterAgreementMember"
      xlink:href="sblk-20131231.xsd#sblk_MasterAgreementMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_MasterAgreementMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementClassOfStockAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementClassOfStockAxis"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ReverseStockSplitDomain"
      xlink:href="sblk-20131231.xsd#sblk_ReverseStockSplitDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_StatementClassOfStockAxis"
      xlink:to="sblk_ReverseStockSplitDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PriorToReverseStockSplitAdjustmentMember"
      xlink:href="sblk-20131231.xsd#sblk_PriorToReverseStockSplitAdjustmentMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="sblk_ReverseStockSplitDomain"
      xlink:to="sblk_PriorToReverseStockSplitAdjustmentMember"
      order="1"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/PreferredCommonStockAndAdditionalPaidInCapitalEquityDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementEquityComponentsAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_EquityComponentDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_StatementEquityComponentsAxis"
      xlink:to="us-gaap_EquityComponentDomain"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementClassOfStockAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" />
    <loc xlink:type="locator"
      xlink:label="sblk_ReverseStockSplitDomain"
      xlink:href="sblk-20131231.xsd#sblk_ReverseStockSplitDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_StatementClassOfStockAxis"
      xlink:to="sblk_ReverseStockSplitDomain"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/LongtermDebtInformationPerLoanDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentFaceAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentFaceAmount"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentCollateral"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentCollateral" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentCollateral"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_LoanDuration"
      xlink:href="sblk-20131231.xsd#sblk_LoanDuration" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_LoanDuration"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentDescriptionOfVariableRateBasis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentDescriptionOfVariableRateBasis"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DebtInstrumentBasisSpreadOnVariableRate2"
      xlink:href="sblk-20131231.xsd#sblk_DebtInstrumentBasisSpreadOnVariableRate2" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_DebtInstrumentBasisSpreadOnVariableRate2"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentCarryingAmount"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentCarryingAmount"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentTable"
      order="7"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DebtInstrumentTable"
      xlink:to="us-gaap_DebtInstrumentAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LongtermDebtTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DebtInstrumentAxis"
      xlink:to="us-gaap_LongtermDebtTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAgMember"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAgMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAgMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommerzbankAg2Member"
      xlink:href="sblk-20131231.xsd#sblk_CommerzbankAg2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CommerzbankAg2Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CreditAgricoleCorporateAndInvestmentBankMember"
      xlink:href="sblk-20131231.xsd#sblk_CreditAgricoleCorporateAndInvestmentBankMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_CreditAgricoleCorporateAndInvestmentBankMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AbnAmroBankMember"
      xlink:href="sblk-20131231.xsd#sblk_AbnAmroBankMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_AbnAmroBankMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankAgMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankAgMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankAgMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankSupramaxTrancheMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankSupramaxTrancheMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankSupramaxTrancheMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankCapesizeTrancheMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankCapesizeTrancheMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankCapesizeTrancheMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankAg2Member"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankAg2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankAg2Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HshNordbankSupramaxTrancheBalloonMember"
      xlink:href="sblk-20131231.xsd#sblk_HshNordbankSupramaxTrancheBalloonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_HshNordbankSupramaxTrancheBalloonMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DebtInstrumentAmountDrawnDown"
      xlink:href="sblk-20131231.xsd#sblk_DebtInstrumentAmountDrawnDown" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_DebtInstrumentAmountDrawnDown"
      order="8"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/LongTermDebtDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LongtermDebtWeightedAverageInterestRate"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtWeightedAverageInterestRate" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_LongtermDebtWeightedAverageInterestRate"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_InterestExpenseLongTermDebt"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestExpenseLongTermDebt" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_InterestExpenseLongTermDebt"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AmortizationOfFinancingCosts"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_AmortizationOfFinancingCosts"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OtherFinancingFees"
      xlink:href="sblk-20131231.xsd#sblk_OtherFinancingFees" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="sblk_OtherFinancingFees"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_WriteOffOfDeferredDebtIssuanceCost"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_WriteOffOfDeferredDebtIssuanceCost"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DebtInstrumentLineItems"
      xlink:to="us-gaap_DebtInstrumentTable"
      order="6"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DebtInstrumentAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DebtInstrumentTable"
      xlink:to="us-gaap_DebtInstrumentAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LongtermDebtTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DebtInstrumentAxis"
      xlink:to="us-gaap_LongtermDebtTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PiraeusBankMember"
      xlink:href="sblk-20131231.xsd#sblk_PiraeusBankMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_PiraeusBankMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PiraeusBank2Member"
      xlink:href="sblk-20131231.xsd#sblk_PiraeusBank2Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_LongtermDebtTypeDomain"
      xlink:to="sblk_PiraeusBank2Member"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/CommitmentsAndContingenciesEnvironmentalDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_CashCollateralForPollution"
      xlink:href="sblk-20131231.xsd#sblk_CashCollateralForPollution" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_CashCollateralForPollution"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CashCollateralForPollutionRelease"
      xlink:href="sblk-20131231.xsd#sblk_CashCollateralForPollutionRelease" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_CashCollateralForPollutionRelease"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InsuranceCoverageMaximumAmount"
      xlink:href="sblk-20131231.xsd#sblk_InsuranceCoverageMaximumAmount" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_InsuranceCoverageMaximumAmount"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_AddressCommission"
      xlink:href="sblk-20131231.xsd#sblk_AddressCommission" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_AddressCommission"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="5"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarCosmoMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarCosmoFinesReducedMember"
      xlink:href="sblk-20131231.xsd#sblk_StarCosmoFinesReducedMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarCosmoFinesReducedMember"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/CommitmentsAndContingenciesLegalDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_OtherIncome"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherIncome" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_OtherIncome"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ProvisionForDoubtfulAccounts"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ProvisionForDoubtfulAccounts"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AccountsReceivableNetCurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_AccountsReceivableNetCurrent"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ProceedsFromLegalSettlements"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromLegalSettlements" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ProceedsFromLegalSettlements"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="5"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBetaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBetaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBetaMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarEpsilonAndStarKappaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarEpsilonAndStarKappaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarEpsilonAndStarKappaMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarGammaAndStarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarGammaAndStarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarGammaAndStarCosmoMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarBorealisMember"
      xlink:href="sblk-20131231.xsd#sblk_StarBorealisMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarBorealisMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_NineNewbuildingVesselsMember"
      xlink:href="sblk-20131231.xsd#sblk_NineNewbuildingVesselsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_NineNewbuildingVesselsMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarPolaris1Member"
      xlink:href="sblk-20131231.xsd#sblk_StarPolaris1Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarPolaris1Member"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GrossDailyCharterRate"
      xlink:href="sblk-20131231.xsd#sblk_GrossDailyCharterRate" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_GrossDailyCharterRate"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselAcquisitionContractPrice"
      xlink:href="sblk-20131231.xsd#sblk_VesselAcquisitionContractPrice" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselAcquisitionContractPrice"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VoyageRevenues"
      xlink:href="sblk-20131231.xsd#sblk_VoyageRevenues" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VoyageRevenues"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OffHireDays"
      xlink:href="sblk-20131231.xsd#sblk_OffHireDays" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_OffHireDays"
      order="9"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/SignificantAccountingPoliciesDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentDepreciationMethods"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDepreciationMethods" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_PropertyPlantAndEquipmentDepreciationMethods"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="3"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarSigmaAndStarYpsilonMember"
      xlink:href="sblk-20131231.xsd#sblk_StarSigmaAndStarYpsilonMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarSigmaAndStarYpsilonMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_AssetImpairmentCharges"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetImpairmentCharges" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_AssetImpairmentCharges"
      order="4"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/CommitmentsAndContigenciesLegalDescriptionDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_LegalMattersAndContingenciesTextBlock"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LegalMattersAndContingenciesTextBlock" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_LegalMattersAndContingenciesTextBlock"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarEpsilonAndStarKappaMember"
      xlink:href="sblk-20131231.xsd#sblk_StarEpsilonAndStarKappaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarEpsilonAndStarKappaMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StarGammaAndStarCosmoMember"
      xlink:href="sblk-20131231.xsd#sblk_StarGammaAndStarCosmoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StarGammaAndStarCosmoMember"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/BasisOfPresentationNewbuildingShips">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselCapacity"
      xlink:href="sblk-20131231.xsd#sblk_VesselCapacity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselCapacity"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_DeliveryDateVessel"
      xlink:href="sblk-20131231.xsd#sblk_DeliveryDateVessel" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_DeliveryDateVessel"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselType"
      xlink:href="sblk-20131231.xsd#sblk_VesselType" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselType"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="4"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1342Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1342Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1342Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1343Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1343Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1343Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNE198Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNE198Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_HullNE198Member"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1338Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1338Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1338Member"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1339Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1339Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1339Member"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNE196Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNE196Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_HullNE196Member"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNE197Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNE197Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_HullNE197Member"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull5040Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull5040Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull5040Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull5043Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull5043Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull5043Member"
      order="9"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/BasisOfPresntationManagementAgreement">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselCapacity"
      xlink:href="sblk-20131231.xsd#sblk_VesselCapacity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselCapacity"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselYearBuilt"
      xlink:href="sblk-20131231.xsd#sblk_VesselYearBuilt" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselYearBuilt"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_EffectiveDateManagementAgreement"
      xlink:href="sblk-20131231.xsd#sblk_EffectiveDateManagementAgreement" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_EffectiveDateManagementAgreement"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="4"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_KymopoliaMember"
      xlink:href="sblk-20131231.xsd#sblk_KymopoliaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_KymopoliaMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_ObelixMember"
      xlink:href="sblk-20131231.xsd#sblk_ObelixMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_ObelixMember"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_PantagruelMember"
      xlink:href="sblk-20131231.xsd#sblk_PantagruelMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_PantagruelMember"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_BigBangMember"
      xlink:href="sblk-20131231.xsd#sblk_BigBangMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_BigBangMember"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_BigFishMember"
      xlink:href="sblk-20131231.xsd#sblk_BigFishMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_BigFishMember"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_RenascentiaMember"
      xlink:href="sblk-20131231.xsd#sblk_RenascentiaMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_RenascentiaMember"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MartoMember"
      xlink:href="sblk-20131231.xsd#sblk_MartoMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_MartoMember"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_StrangeAttractorMember"
      xlink:href="sblk-20131231.xsd#sblk_StrangeAttractorMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_StrangeAttractorMember"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_MaidenVoyageCopyMember"
      xlink:href="sblk-20131231.xsd#sblk_MaidenVoyageCopyMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_MaidenVoyageCopyMember"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_SerenityIMember"
      xlink:href="sblk-20131231.xsd#sblk_SerenityIMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_SerenityIMember"
      order="10"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/TransactionsWithRelatedPartiesCapitalizedExpenses">
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      order="1"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"
      xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_RelatedPartyDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"
      xlink:to="us-gaap_RelatedPartyDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OceanbulkMaritimeMember"
      xlink:href="sblk-20131231.xsd#sblk_OceanbulkMaritimeMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyDomain"
      xlink:to="sblk_OceanbulkMaritimeMember"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_CommisionsOnAcquisitionOfAssets"
      xlink:href="sblk-20131231.xsd#sblk_CommisionsOnAcquisitionOfAssets" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_RelatedPartyTransactionLineItems"
      xlink:to="sblk_CommisionsOnAcquisitionOfAssets"
      order="2"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/FairValueNonRecurringBasis">
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeAssetsNoncurrent"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeAssetsNoncurrent" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_DerivativeAssetsNoncurrent"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_DerivativeLineItems"
      xlink:to="us-gaap_DerivativeTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeByNatureAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeByNatureAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_DerivativeTable" xlink:to="us-gaap_DerivativeByNatureAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_DerivativeNameDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeNameDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_DerivativeByNatureAxis"
      xlink:to="us-gaap_DerivativeNameDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_InterestRateSwapsMember"
      xlink:href="sblk-20131231.xsd#sblk_InterestRateSwapsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_DerivativeNameDomain"
      xlink:to="sblk_InterestRateSwapsMember"
      order="1"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/AdvancesForVesselAcquisitionDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_DeliveryDateVessel"
      xlink:href="sblk-20131231.xsd#sblk_DeliveryDateVessel" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_DeliveryDateVessel"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1338Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1338Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1338Member"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1339Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1339Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1339Member"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1342Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1342Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1342Member"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull1343Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull1343Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull1343Member"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull5040Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull5040Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull5040Member"
      order="5"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull5043Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull5043Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull5043Member"
      order="6"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNE196Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNE196Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_HullNE196Member"
      order="7"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNE197Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNE197Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_HullNE197Member"
      order="8"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_HullNE198Member"
      xlink:href="sblk-20131231.xsd#sblk_HullNE198Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_HullNE198Member"
      order="9"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_NineNewbuildingVesselsMember"
      xlink:href="sblk-20131231.xsd#sblk_NineNewbuildingVesselsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_NineNewbuildingVesselsMember"
      order="10"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_Hull5040Hull5043Member"
      xlink:href="sblk-20131231.xsd#sblk_Hull5040Hull5043Member" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_Hull5040Hull5043Member"
      order="11"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselGross"
      xlink:href="sblk-20131231.xsd#sblk_VesselGross" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselGross"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_VesselCapacity"
      xlink:href="sblk-20131231.xsd#sblk_VesselCapacity" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_VesselCapacity"
      order="5"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/AdvancesForVesselsAcquisitionsTableDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_InterestCostsCapitalized"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestCostsCapitalized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_InterestCostsCapitalized"
      order="2"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_OtherCostsCapitalized"
      xlink:href="sblk-20131231.xsd#sblk_OtherCostsCapitalized" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="sblk_OtherCostsCapitalized"
      order="3"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ConstructionInProgressGross"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConstructionInProgressGross" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ConstructionInProgressGross"
      order="4"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems"
      xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      order="5"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"
      xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis"
      xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_NineNewbuildingVesselsMember"
      xlink:href="sblk-20131231.xsd#sblk_NineNewbuildingVesselsMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain"
      xlink:to="sblk_NineNewbuildingVesselsMember"
      order="1"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/IncomeTaxesDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementLineItems"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" />
    <loc xlink:type="locator"
      xlink:label="sblk_TonnageTax"
      xlink:href="sblk-20131231.xsd#sblk_TonnageTax" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="sblk_TonnageTax"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_StatementTable"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/all"
      xlink:from="us-gaap_StatementLineItems"
      xlink:to="us-gaap_StatementTable"
      order="2"
      use="optional"
      xbrldt:contextElement="segment"
      xbrldt:closed="true" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_IncomeTaxAuthorityAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension"
      xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_IncomeTaxAuthorityAxis"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_IncomeTaxAuthorityDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain"
      xlink:from="us-gaap_IncomeTaxAuthorityAxis"
      xlink:to="us-gaap_IncomeTaxAuthorityDomain"
      order="1"
      use="optional" />
    <loc xlink:type="locator"
      xlink:label="sblk_GreeceMember"
      xlink:href="sblk-20131231.xsd#sblk_GreeceMember" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member"
      xlink:from="us-gaap_IncomeTaxAuthorityDomain"
      xlink:to="sblk_GreeceMember"
      order="1"
      use="optional" />
  </definitionLink>
  <definitionLink xlink:type="extended"
    xlink:role="http://www.starbulk.com/20131231/role/IncomeTaxesDetails">
    <loc xlink:type="locator"
      xlink:label="us-gaap_IncomeTaxAuthorityAxis"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" />
    <loc xlink:type="locator"
      xlink:label="us-gaap_IncomeTaxAuthorityDomain"
      xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" />
    <definitionArc xlink:type="arc"
      xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default"
      xlink:from="us-gaap_IncomeTaxAuthorityAxis"
      xlink:to="us-gaap_IncomeTaxAuthorityDomain"
      order="2"
      use="optional" />
  </definitionLink>
</linkbase>
