Sinn refers to the German word Sinn (sense), frequently contrasted with Bedeutung (indication, reference) in discussions of meaning.

Sinn may also refer to: Sinn (river), a river in Germany Sinn, Hesse, a community in Germany Sinn (watchmaker), a German watchmaker Sinn (comics), a character from the Spawn comics Sinn, a character on the animated television series Frisky Dingo Nickname of the professional wrestler Nick Cvjetkovich Sinn Sisamouth, a Khmer singer and songwriter in the 1950s to the 1970s