Luther the Geek (Alternately spelled Luther, the Freak) is a 1989 American horror film directed by Carlton J. Albright and released by Troma Entertainment. It stars Edward Terry in the title role, with Stacy Haiduk and Joan Roth playing supporting roles.

In the film, a man fascinated with carnival geeks starts decapitating people with his metallic dentures. Following his release from prison, he invades a farm and takes two female hostages. But one of the hostages fights back and kills him.