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    <periodOfReport>2021-01-07</periodOfReport>

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        <issuerName>TIFFANY &amp; CO</issuerName>
        <issuerTradingSymbol>TIF</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Singer Robert S</rptOwnerName>
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            <rptOwnerStreet2>727 FIFTH AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
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            <otherText></otherText>
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                </underlyingSecurityTitle>
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    <footnotes>
        <footnote id="F1">Disposed of pursuant to the Amended and Restated Agreement and Plan of Merger, dated as of October 28, 2020, by and among Tiffany &amp; Co. (the &quot;Company&quot;), LVMH Moet Hennessy-Louis Vuitton SE (&quot;Parent&quot;), Breakfast Holdings Acquisition Corp. (&quot;Holding&quot;) and Breakfast Acquisition Corp. (&quot;Merger Sub&quot;) (the &quot;Merger Agreement&quot;), which amended and restated the Agreement and Plan of Merger, dated as of November 24, 2019, by and among the Company, Parent, Holding and Merger Sub, in exchange for $131.50 per share in cash, without interest and less any required withholding taxes (the &quot;Per Share Merger Consideration&quot;). The total number of shares disposed of included 2,180 unvested restricted stock units.</footnote>
        <footnote id="F2">Pursuant to the Merger Agreement, each outstanding option, whether vested or unvested, was canceled and converted into the right to receive an amount in cash, without interest and less any required withholding taxes, equal to the product of (i) the excess, if any, of (A) the Per Share Merger Consideration over (B) the per-share exercise price for such option, multiplied by (ii) the total number of shares underlying such option.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Catherine W.H. So, Attorney-in-Fact</signatureName>
        <signatureDate>2021-01-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0306
4
2021-01-07
1
0000098246
TIFFANY & CO
TIF
0001291809
Singer Robert S
TIFFANY & CO.
727 FIFTH AVENUE
NEW YORK
NY
10022
1
0
0
0
Common Stock $.01 Par
2021-01-07
4
D
0
12486
131.50
D
0
D
Non-Qualified Stock Option (Right to Buy)
93.53
2021-01-07
4
D
0
4951
D
2029-06-04
Common Stock $.01 Par
4951.0
0
D
Non-Qualified Stock Option (Right to Buy)
126.44
2021-01-07
4
D
0
3326
D
2028-05-24
Common Stock $.01 Par
3326.0
0
D
Non-Qualified Stock Option (Right to Buy)
85.82
2021-01-07
4
D
0
5450
D
2027-05-25
Common Stock $.01 Par
5450.0
0
D
Non-Qualified Stock Option (Right to Buy)
63.38
2021-01-07
4
D
0
6020
D
2026-05-26
Common Stock $.01 Par
6020.0
0
D
Non-Qualified Stock Option (Right to Buy)
94.63
2021-01-07
4
D
0
3409
D
2025-05-28
Common Stock $.01 Par
3409.0
0
D
Non-Qualified Stock Option (Right to Buy)
96.73
2021-01-07
4
D
0
2976
D
2024-05-22
Common Stock $.01 Par
2976.0
0
D
Non-Qualified Stock Option (Right to Buy)
76.82
2021-01-07
4
D
0
2886
D
2023-05-16
Common Stock $.01 Par
2886.0
0
D
Non-Qualified Stock Option (Right to Buy)
61.12
2021-01-07
4
D
0
2878
D
2022-05-27
Common Stock $.01 Par
2878.0
0
D
Disposed of pursuant to the Amended and Restated Agreement and Plan of Merger, dated as of October 28, 2020, by and among Tiffany & Co. (the "Company"), LVMH Moet Hennessy-Louis Vuitton SE ("Parent"), Breakfast Holdings Acquisition Corp. ("Holding") and Breakfast Acquisition Corp. ("Merger Sub") (the "Merger Agreement"), which amended and restated the Agreement and Plan of Merger, dated as of November 24, 2019, by and among the Company, Parent, Holding and Merger Sub, in exchange for $131.50 per share in cash, without interest and less any required withholding taxes (the "Per Share Merger Consideration"). The total number of shares disposed of included 2,180 unvested restricted stock units.
Pursuant to the Merger Agreement, each outstanding option, whether vested or unvested, was canceled and converted into the right to receive an amount in cash, without interest and less any required withholding taxes, equal to the product of (i) the excess, if any, of (A) the Per Share Merger Consideration over (B) the per-share exercise price for such option, multiplied by (ii) the total number of shares underlying such option.
/s/ Catherine W.H. So, Attorney-in-Fact
2021-01-11