<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-03-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0002041385</issuerCik>
        <issuerName>Ralliant Corp</issuerName>
        <issuerTradingSymbol>RAL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001901021</rptOwnerCik>
            <rptOwnerName>Newcombe Tamara S.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RALLIANT CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>4114 CENTER AT NORTH HILLS ST, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>RALEIGH</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27609</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Executive Deferred Incentive Program - Ralliant Stock Fund</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-03-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2912</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>46.36</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2912</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14664.1</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Compensation deferred or contributed into the Issuer stock fund (the &quot;EDIP Stock Fund&quot;) under the Issuer's Executive Deferred Incentive Program (the &quot;EDIP&quot;) is deemed to be invested in a number
of unfunded, notional shares of the Issuer's common stock based on the closing price of such common stock as reported on the NYSE on the business day last preceding the date such compensation is
credited to the EDIP Stock Fund, which closing price is shown in Table II, Column 8.</footnote>
        <footnote id="F2">The notional shares settle in shares of the Issuer's common stock on a one-to-one basis.</footnote>
        <footnote id="F3">The Reporting Person immediately vests in 100% of each voluntary contribution to the EDIP Stock Fund. The Reporting Person will vest in all contributions to the EDIP Stock Fund by the Issuer as
follows: 100% upon the earlier of the Reporting Person's death, or upon retirement following at least five years of service with the Issuer and reaching the age of 55, or, if earlier, one-tenth per year of
participation following five years of participation, in each case in accordance with the EDIP. Upon termination of employment, the vested portion of the EDIP Stock Fund is settled in the Issuer's
common stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Sarah Johnson, attorney-in-fact</signatureName>
        <signatureDate>2026-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
