A wink is an intentional facial expression, made by closing one eye and tensing the facial muscles above and below. It usually indicates a silent knowledge, such as if a salesperson gives a customer a catalog and says "here you go, it's free". It may also mean "got it" or "yes, I understand".

Wink may also mean:

• Josh Wink (who also performed as Winx and Wink)
• Walter Wink, a theologian and political theorist.
• Wink, Texas
• Steffen Wink German actor
• WINK radio stations and TV station in Fort Myers, Florida
• Wink (game), a modified wrestling game.
• Wink (animated file), a computing term
• Wink (tutorial software), a free computer program for creating tutorials and presentations.
• A disc shaped playing piece in the game tiddlywinks