Galaxy of Terror (originally released as Mindwarp: An Infinity of Terror) is a 1981 American science fiction horror film directed by Bruce D. Clark and produced by Roger Corman through New World Pictures. It stars Edward Albert, Erin Moran, Ray Walston, Taaffe O'Connell, and future horror film stars Sid Haig and Robert Englund. Set in a dystopian future where humanity is a spacefaring race ruled by a sole person called "The Master," the film features a space crew confronting primal fears after they are marooned on a distant planet.

The film has many of the hallmarks associated with the "B-movie" style Roger Corman became known for: low budget, up-and-coming production personnel, and exploitive material, including a notorious scene in which a worm sexually assaults Taaffe O'Connell. It is also notable for its production design and visual effects, which were created by James Cameron in one of his earliest filmmaking credits.

Released on September 4, 1981, the film has developed a cult following. Critics have noted its influence on later productions, most notably Cameron's own Aliens (1986).