content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001681782</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001754068</issuerCik>
        <issuerName>Allovir, Inc.</issuerName>
        <secFileNumber>001-39409</secFileNumber>
        <issuerAddress>
          <com:street1>1100 WINTER STREET</com:street1>
          <com:city>WALTHAM</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02451</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>617-433-2605</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Brett Hagen</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue</com:street1>
            <com:street2>6th Floor</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>5045</noOfUnitsSold>
        <aggregateMarketValue>28656</aggregateMarketValue>
        <noOfUnitsOutstanding>93589952</noOfUnitsOutstanding>
        <approxSaleDate>06/09/2023</approxSaleDate>
        <securitiesExchangeName>Nasdaq</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/19/2023</acquiredDate>
        <natureOfAcquisitionTransaction>RSU Vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>744</amountOfSecuritiesAcquired>
        <paymentDate>04/19/2023</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/18/2023</acquiredDate>
        <natureOfAcquisitionTransaction>RSU Vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>742</amountOfSecuritiesAcquired>
        <paymentDate>04/18/2023</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>01/19/2023</acquiredDate>
        <natureOfAcquisitionTransaction>RSU Vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>756</amountOfSecuritiesAcquired>
        <paymentDate>01/19/2023</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>01/18/2023</acquiredDate>
        <natureOfAcquisitionTransaction>RSU Vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2803</amountOfSecuritiesAcquired>
        <paymentDate>01/18/2023</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>06/09/2023</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Brett Hagen</signature>
      </noticeSignature>
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metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4346}]
text: 144
  0001681782
  XXXXXXXX
  LIVE
  0001754068
  Allovir, Inc.
  001-39409
  1100 WINTER STREET
  WALTHAM
  MA
  02451
  617-433-2605
  Brett Hagen
  Affiliate
  Common
  J.P. Morgan Securities LLC
  390 Madison Avenue
  6th Floor
  New York
  NY
  10017
  5045
  28656
  93589952
  06/09/2023
  Nasdaq
  Common
  04/19/2023
  RSU Vest
  Issuer
  N
  744
  04/19/2023
  NA
  Common
  04/18/2023
  RSU Vest
  Issuer
  N
  742
  04/18/2023
  NA
  Common
  01/19/2023
  RSU Vest
  Issuer
  N
  756
  01/19/2023
  NA
  Common
  01/18/2023
  RSU Vest
  Issuer
  N
  2803
  01/18/2023
  NA
  Y
  06/09/2023
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Brett Hagen