<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001069096</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001739426</issuerCik>
      <issuerName>RVL Pharmaceuticals plc</issuerName>
      <secFileNumber>001-38709</secFileNumber>
      <issuerAddress>
        <com:street1>400 CROSSING BOULEVARD</com:street1>
        <com:city>BRIDGEWATER</com:city>
        <com:stateOrCountry>NJ</com:stateOrCountry>
        <com:zipCode>08807</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>9088091300</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Dean Thompson</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Venture Investor/General Partner</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>RVL Pharmaceuticals plc</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>555 California St, 18th FL</com:street1>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94104</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>879004</noOfUnitsSold>
      <aggregateMarketValue>87900.40</aggregateMarketValue>
      <noOfUnitsOutstanding>99535197</noOfUnitsOutstanding>
      <approxSaleDate>08/30/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Ordinary</securitiesClassTitle>
      <acquiredDate>08/08/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Private Placement</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>THOD Corp &amp; Dean Family 2015 Trust (Thompson Dean)</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>879004</amountOfSecuritiesAcquired>
      <paymentDate>08/08/2022</paymentDate>
      <natureOfPayment>Private placement</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Sriram Venkataraman</name>
        <address>
          <com:street1>65 E 55th St</com:street1>
          <com:street2>Floor 18</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10022</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary</securitiesClassTitle>
      <saleDate>08/24/2023</saleDate>
      <amountOfSecuritiesSold>140767</amountOfSecuritiesSold>
      <grossProceeds>17156.43</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>THOD Corp</name>
        <address>
          <com:street1>65 E 55th St</com:street1>
          <com:street2>Floor 18</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10022</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary</securitiesClassTitle>
      <saleDate>08/24/2023</saleDate>
      <amountOfSecuritiesSold>767515</amountOfSecuritiesSold>
      <grossProceeds>107452.10</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>DAFB Corp</name>
        <address>
          <com:street1>65 E 55th St</com:street1>
          <com:street2>Floor 18</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10022</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary</securitiesClassTitle>
      <saleDate>08/24/2023</saleDate>
      <amountOfSecuritiesSold>767515</amountOfSecuritiesSold>
      <grossProceeds>107452.10</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/30/2023</noticeDate>
      <signature>Thompson Dean</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
