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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2022-09-30</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001865533</issuerCik>
        <issuerName>Emerging Markets Horizon Corp.</issuerName>
        <issuerTradingSymbol>HORIU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001949542</rptOwnerCik>
            <rptOwnerName>RCB BANK LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2 AMATHOUNTOS STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LIMASSOL</rptOwnerCity>
            <rptOwnerState>G4</rptOwnerState>
            <rptOwnerZipCode>3105</rptOwnerZipCode>
            <rptOwnerStateDescription>CYPRUS</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A ordinary shares</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3050000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrant</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.5</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2022-12-08</value>
            </exerciseDate>
            <expirationDate>
                <value>2028-02-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A ordinary shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1525000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Includes securities underlying 3,050,000 units. As described in the issuer's registration statement on Form S-1 (File No. 333-258393) under the heading &quot;Description of securities&quot;, each unit has an offering price of $10.00 and consists of Class A ordinary share and one-half of one redeemable warrant with each whole warrant entitling the holder to purchase one Class A ordinary share at $11.50 per share.</footnote>
        <footnote id="F2">Includes 1,525,000 warrants underlying the units referred in footnote 1</footnote>
    </footnotes>

    <remarks>Units were acquired under GMRA and GMSLA agreements</remarks>

    <ownerSignature>
        <signatureName>Arkadii Zalevskii</signatureName>
        <signatureDate>2022-10-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
