Teenage Monster is a 1958 independently made science fiction-horror Western film. It was produced and directed by Jacques R. Marquette, and stars Anne Gwynne and Stuart Wade. The film had a first screening on December 25, 1957, in Los Angeles. It went into general theatrical release in January 1958, in a double feature with The Brain from Planet Arous; the pairing combined science fiction and Western film elements, both of which were very popular in the late 1950s.