Speak of the Devil is a 1989 American horror comedy film produced and directed by Raphael Nussbaum from a story by Wally K. Berns. It was also released under the name The Ungodly.

In the film, a phony preacher and faith healer flees from the police in Louisiana. He and his greedy wife settle in a derelict house in Los Angeles, initially unaware that it is haunted by demons. The wife establishes a Church of Latter Day Sin (LDS) and starts collaborating with the demons, while her increasingly disturbed husband tries to stop her.