You Never Know may refer to:

• You Never Know (musical), Cole Porter musical 1938
• You Never Know (album), by drummer Peter Erskine featuring pianist John Taylor and bassist Palle Danielsson 1992
• "You Never Know" (Solid Base song) 1996
• "You Never Know" (Stan Walker song) 2016
• "You Never Know", song by Dave Matthews Band from Busted Stuff 2002
• "You Never Snow", a Thomas annual story from the 1986 annual

• List of protected areas in Kazakhstan
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• List of protected areas in Nova Scotia
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• List of protected areas of California
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• List of protected areas of Kazakhstan