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      <filer>
        <filerCredentials>
          <cik>0001798883</cik>
          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0000066570</issuerCik>
      <issuerName>MSA Safety Inc</issuerName>
      <secFileNumber>001-15579</secFileNumber>
      <issuerAddress>
        <com:street1>1000 CRANBERRY WOODS DRIVE</com:street1>
        <com:city>CRANBERRY TOWNSHIP</com:city>
        <com:stateOrCountry>PA</com:stateOrCountry>
        <com:zipCode>16066</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>724-776-8600</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Sciullo Stephanie L</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</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>4093</noOfUnitsSold>
      <aggregateMarketValue>629907.88</aggregateMarketValue>
      <noOfUnitsOutstanding>39267074</noOfUnitsOutstanding>
      <approxSaleDate>06/09/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/08/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>889</amountOfSecuritiesAcquired>
      <paymentDate>03/08/2020</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/08/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>655</amountOfSecuritiesAcquired>
      <paymentDate>03/08/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/08/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>396</amountOfSecuritiesAcquired>
      <paymentDate>03/08/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/08/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2153</amountOfSecuritiesAcquired>
      <paymentDate>03/08/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/09/2023</noticeDate>
      <signature>/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Stephanie Sciullo</signature>
    </noticeSignature>
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144
0001798883
XXXXXXXX
LIVE
0000066570
MSA Safety Inc
001-15579
1000 CRANBERRY WOODS DRIVE
CRANBERRY TOWNSHIP
PA
16066
724-776-8600
Sciullo Stephanie L
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
4093
629907.88
39267074
06/09/2023
NYSE
Common
03/08/2020
Restricted Stock Vesting
Issuer
N
889
03/08/2020
Compensation
Common
03/08/2021
Restricted Stock Vesting
Issuer
N
655
03/08/2021
Compensation
Common
03/08/2022
Restricted Stock Vesting
Issuer
N
396
03/08/2022
Compensation
Common
03/08/2023
Restricted Stock Vesting
Issuer
N
2153
03/08/2023
Compensation
Y
06/09/2023
/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Stephanie Sciullo