<?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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      <filer>
        <filerCredentials>
          <cik>0001060493</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
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      <liveTestFlag>LIVE</liveTestFlag>



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  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001436126</issuerCik>
      <issuerName>Mistras Group, Inc.</issuerName>
      <secFileNumber>001-34481</secFileNumber>
      <issuerAddress>
        <com:street1>195 CLARKSVILLE ROAD</com:street1>
        <com:city>PRINCETON JUNCTION</com:city>
        <com:stateOrCountry>NJ</com:stateOrCountry>
        <com:zipCode>08550</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>609-716-4000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>GLANTON RICHARD H</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co., Inc</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>20000</noOfUnitsSold>
      <aggregateMarketValue>161600.00</aggregateMarketValue>
      <noOfUnitsOutstanding>30966973</noOfUnitsOutstanding>
      <approxSaleDate>06/18/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>12/08/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Directors Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>20000</amountOfSecuritiesAcquired>
      <paymentDate>12/08/2023</paymentDate>
      <natureOfPayment>Directors Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>shares were acquired on 12/08/23 and 03/27/24 as directors compensation shares are being sold from the account titled: Eileen M Glanton CUST FOR G Glanton UTMA</remarks>
    <noticeSignature>
      <noticeDate>06/18/2024</noticeDate>
      <signature>Richard Glanton</signature>
    </noticeSignature>
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144
0001060493
XXXXXXXX
LIVE
0001436126
Mistras Group, Inc.
001-34481
195 CLARKSVILLE ROAD
PRINCETON JUNCTION
NJ
08550
609-716-4000
GLANTON RICHARD H
Director
Common
Charles Schwab & Co., Inc
3000 Schwab Way
Westlake
TX
76262
20000
161600.00
30966973
06/18/2024
NYSE
Common
12/08/2023
Directors Compensation
Issuer
N
20000
12/08/2023
Directors Compensation
Y
shares were acquired on 12/08/23 and 03/27/24 as directors compensation shares are being sold from the account titled: Eileen M Glanton CUST FOR G Glanton UTMA
06/18/2024
Richard Glanton