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    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001977266</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001419945</issuerCik>
            <issuerName>TEEKAY TANKERS LTD.</issuerName>
            <secFileNumber>001-33867</secFileNumber>
            <issuerAddress>
                <ns2:street1>4th Floor, Belvedere Building, 69 Pitts </ns2:street1>
                <ns2:street2>Bay Road</ns2:street2>
                <ns2:city>Hamilton</ns2:city>
                <ns2:stateOrCountry>D0</ns2:stateOrCountry>
                <ns2:zipCode>HM08</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(441) 298-2530</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>KEVIN JAMES MACKAY</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>97728</noOfUnitsSold>
            <aggregateMarketValue>5386718.50</aggregateMarketValue>
            <noOfUnitsOutstanding>29312945</noOfUnitsOutstanding>
            <approxSaleDate>03/01/2024</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <acquiredDate>03/01/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of options under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>97728</amountOfSecuritiesAcquired>
            <paymentDate>03/01/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>KEVIN JAMES MACKAY</name>
                <address>
                    <ns2:street1>4th Floor, Belvedere Building, 69 Pitts </ns2:street1>
                    <ns2:street2>Bay Road</ns2:street2>
                    <ns2:city>Hamilton</ns2:city>
                    <ns2:stateOrCountry>D0</ns2:stateOrCountry>
                    <ns2:zipCode>HM08</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <saleDate>02/29/2024</saleDate>
            <amountOfSecuritiesSold>27610</amountOfSecuritiesSold>
            <grossProceeds>1518715.66</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/01/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Kevin James Mackay</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001977266
XXXXXXXX
LIVE
0001419945
TEEKAY TANKERS LTD.
001-33867
4th Floor, Belvedere Building, 69 Pitts
Bay Road
Hamilton
D0
HM08
(441) 298-2530
KEVIN JAMES MACKAY
Officer
Class A Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
97728
5386718.50
29312945
03/01/2024
NYSE
Class A Common
03/01/2024
Exercise of options under a registered plan
Issuer
N
97728
03/01/2024
Cash
N
KEVIN JAMES MACKAY
4th Floor, Belvedere Building, 69 Pitts
Bay Road
Hamilton
D0
HM08
Class A Common
02/29/2024
27610
1518715.66
03/01/2024
/s/ Kevin James Mackay