content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <filerInfo>
        <filer>
          <filerCredentials>
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            <ccc>XXXXXXXX</ccc>
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        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0001704292</issuerCik>
        <issuerName>Zai Lab Ltd</issuerName>
        <secFileNumber>001-38205</secFileNumber>
        <issuerAddress>
          <com:street1>4560 JINKE ROAD</com:street1>
          <com:street2>BLDG. 1, 4F, PUDONG</com:street2>
          <com:city>SHANGHAI</com:city>
          <com:stateOrCountry>F4</com:stateOrCountry>
          <com:zipCode>201210</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>862161632588</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Edmondson Frazor Titus III</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>5062</noOfUnitsSold>
        <aggregateMarketValue>90616.38</aggregateMarketValue>
        <noOfUnitsOutstanding>758101320</noOfUnitsOutstanding>
        <approxSaleDate>06/26/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
        <acquiredDate>06/25/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>5062</amountOfSecuritiesAcquired>
        <paymentDate>06/25/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Frazor T. Edmondson</name>
          <address>
            <com:street1>4560 Jinke Road</com:street1>
            <com:street2>Bldg. 1, Fourth Floor Pudong</com:street2>
            <com:city>Shanghai</com:city>
            <com:stateOrCountry>F4</com:stateOrCountry>
            <com:zipCode>201210</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
        <saleDate>04/02/2024</saleDate>
        <amountOfSecuritiesSold>885</amountOfSecuritiesSold>
        <grossProceeds>14293.72</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Frazor T. Edmondson</name>
          <address>
            <com:street1>4560 Jinke Road</com:street1>
            <com:street2>Bldg. 1, Fourth Floor Pudong</com:street2>
            <com:city>Shanghai</com:city>
            <com:stateOrCountry>F4</com:stateOrCountry>
            <com:zipCode>201210</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
        <saleDate>04/04/2024</saleDate>
        <amountOfSecuritiesSold>1244</amountOfSecuritiesSold>
        <grossProceeds>19496.84</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Frazor T. Edmondson</name>
          <address>
            <com:street1>4560 Jinke Road</com:street1>
            <com:street2>Bldg. 1, Fourth Floor Pudong</com:street2>
            <com:city>Shanghai</com:city>
            <com:stateOrCountry>F4</com:stateOrCountry>
            <com:zipCode>201210</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
        <saleDate>05/14/2024</saleDate>
        <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
        <grossProceeds>213346.15</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
  </remarks>
      <noticeSignature>
        <noticeDate>06/26/2024</noticeDate>
        <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Frazor T Edmondson</signature>
      </noticeSignature>
    </formData>
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text: 144
  0001835780
  XXXXXXXX
  LIVE
  0001704292
  Zai Lab Ltd
  001-38205
  4560 JINKE ROAD
  BLDG. 1, 4F, PUDONG
  SHANGHAI
  F4
  201210
  862161632588
  Edmondson Frazor Titus III
  Officer
  American Depositary Shares
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  5062
  90616.38
  758101320
  06/26/2024
  NASDAQ
  American Depositary Shares
  06/25/2024
  Restricted Stock Vesting
  Issuer
  N
  5062
  06/25/2024
  Compensation
  N
  Frazor T. Edmondson
  4560 Jinke Road
  Bldg. 1, Fourth Floor Pudong
  Shanghai
  F4
  201210
  American Depositary Shares
  04/02/2024
  885
  14293.72
  Frazor T. Edmondson
  4560 Jinke Road
  Bldg. 1, Fourth Floor Pudong
  Shanghai
  F4
  201210
  American Depositary Shares
  04/04/2024
  1244
  19496.84
  Frazor T. Edmondson
  4560 Jinke Road
  Bldg. 1, Fourth Floor Pudong
  Shanghai
  F4
  201210
  American Depositary Shares
  05/14/2024
  10000
  213346.15
  Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
  06/26/2024
  /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Frazor T Edmondson