<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001978604</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001386716</issuerCik>
            <issuerName>STAR BULK CARRIERS CORP.</issuerName>
            <secFileNumber>001-33869</secFileNumber>
            <issuerAddress>
                <ns2:street1>C/O STAR BULK MANAGEMENT INC.</ns2:street1>
                <ns2:street2>40 AGIOU KONSTANTINOU STR</ns2:street2>
                <ns2:city>Athens</ns2:city>
                <ns2:stateOrCountry>J3</ns2:stateOrCountry>
                <ns2:zipCode>15124</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>011-30-210-617-8400</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CHARIS PLAKANTONAKI</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>12520</noOfUnitsSold>
            <aggregateMarketValue>235439.85</aggregateMarketValue>
            <noOfUnitsOutstanding>102857416</noOfUnitsOutstanding>
            <approxSaleDate>08/10/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>04/11/2019</acquiredDate>
            <natureOfAcquisitionTransaction>Private Acquisition from Issuer Star Bulk Incentive Program</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>12520</amountOfSecuritiesAcquired>
            <paymentDate>04/11/2019</paymentDate>
            <natureOfPayment>Compensation</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>08/10/2023</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Charis Plakantonaki</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001978604
XXXXXXXX
LIVE
0001386716
STAR BULK CARRIERS CORP.
001-33869
C/O STAR BULK MANAGEMENT INC.
40 AGIOU KONSTANTINOU STR
Athens
J3
15124
011-30-210-617-8400
CHARIS PLAKANTONAKI
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
12520
235439.85
102857416
08/10/2023
NASDAQ
Common
04/11/2019
Private Acquisition from Issuer Star Bulk Incentive Program
Issuer
N
12520
04/11/2019
Compensation
Y
08/10/2023
/s/ Charis Plakantonaki