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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2019-06-20</periodOfReport>

    <dateOfOriginalSubmission>2019-06-24</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001707753</issuerCik>
        <issuerName>Elastic N.V.</issuerName>
        <issuerTradingSymbol>ESTC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001626464</rptOwnerCik>
            <rptOwnerName>Volpi Michelangelo</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ELASTIC N.V.</rptOwnerStreet1>
            <rptOwnerStreet2>800 WEST EL CAMINO REAL, SUITE 350</rptOwnerStreet2>
            <rptOwnerCity>MOUNTAIN VIEW</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94040</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2019-06-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>34778</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>78.1874</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5504722</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents 31,349 shares sold by Index Ventures Associates IV Limited (&quot;Index Ventures IV GP&quot;), the managing general partner of Index Ventures IV (Jersey) LP (&quot;Index Ventures IV&quot;) and Index Ventures IV Parallel Entrepreneur Fund (Jersey) LP (&quot;Index Ventures IV Parallel&quot;) and 3,429 shares sold by Yucca (Jersey) SLP (&quot;Yucca&quot;).</footnote>
        <footnote id="F2">The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $78.00 - $78.525.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.</footnote>
        <footnote id="F3">Represents 1,640,232, 155,691, 3,548,566, 71,628, 63,098 and 25,507 shares held directly by Index Ventures IV, Index Ventures IV Parallel, Index Ventures VI (Jersey) LP (&quot;Index Ventures VI&quot;), Index Ventures VI Parallel Entrepreneur Fund (Jersey) LP (&quot;Index Ventures VI Parallel&quot; and, together with Index Ventures IV, Index Ventures IV Parallel and Index Ventures VI, the &quot;Index Funds&quot;), Yucca and Index Ventures IV GP.  Yucca is an Index co-investment vehicle that is contractually required to mirror the Index Funds' investment in the shares.</footnote>
        <footnote id="F4">Mr. Volpi is co-president of Index Ventures (US) Inc. which provides certain consultancy services to the Index Funds' affiliates.  The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.</footnote>
    </footnotes>

    <remarks>This amendment is being filed to correct certain information in Table I relating to the total number of shares sold and the number of remaining shares following such sale.  In addition, footnotes (1) and (3) have been amended to reflect the corresponding changes.  Finally, footnote (2) has been revised to correct the price range at which the shares were sold.</remarks>

    <ownerSignature>
        <signatureName>/s/ Michael Volpi</signatureName>
        <signatureDate>2019-06-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
