I Was a Teenage Frankenstein (U.K. title: Teenage Frankenstein) is a horror film starring Whit Bissell, Phyllis Coates and Gary Conway, released by American International Pictures (AIP) in November 1957 as a double feature with Blood of Dracula. It is the follow-up to AIP's box office hit I Was a Teenage Werewolf, released less than five months earlier. Both films later received a sequel in the crossover How to Make a Monster, released in July 1958. The film stars Whit Bissell, Phyllis Coates, Robert Burton, Gary Conway and George Lynn.