In common usage, a mystery is a description for something which is unknown or yet unexplained.

Mystery may also refer to:

• Mystery religion, a belief system based around a mystery
• Mystery play, a form of dramatic theatre that deals with religious themes
• Mystery fiction, a subgenre of detective fiction, in print, on the stage, or on film
• Mystery (television network), a Canadian digital television channel
• Mystery Strange, a fictional cat belonging to Emily Strange
• Mysteries (novel) (Mysterier), a 1892 novel by Norwegian Knut Hamsun
• Mystery (novel), a horror novel by Peter Straub
• Mystery!, a long-running PBS program showing British detective fiction
• Erik Von Markovik, a.k.a. "Mystery", creator of the "Mystery Method" of seduction
• Ancient mysteries, mysteries that originate in the ancient or medieval world

See also

• Sacred Mysteries