Treachery is the betrayal or violation of trust. It may refer to:
Treachery (law), an offence in several countries, related to treason Treachery (Revenge), the eighth episode of the American television series Revenge Treachery (film), a film written and directed by Travis Romero and starring Michael Biehn "Treachery", a song by Unwound from their 2001 album Leaves Turn Inside You The Dark Tower: Treachery, the Stephen King comic book series An Old Norse word for Sköll, a wolf in Norse mythology
See also Treacherous (disambiguation) Treason