Fire Maidens from Outer Space (US: Fire Maidens of Outer Space) is a 1956 British independent black-and-white science fiction feature film. It was written, produced and directed by American filmmaker Cy Roth as a collaboration between Cy Roth Productions and Great Britain's Criterion Films, and distributed in the UK by Eros Films and in the USA by Topaz Film Co.. The film stars Anthony Dexter as the lead astronaut, Susan Shaw as a "fire maiden" who befriends him, Paul Carpenter as the expedition captain, and Jacqueline Curtis as the "fire maiden" leader. There were 13 additional "fire maidens". The music score features cues excerpted from the opera Prince Igor by Alexander Borodin.

Many film critics have dubbed the film the "worst movie ever made".