Lady Possessed is a 1952 American film noir mystery film directed by William Spier and Roy Kellino and starring James Mason and June Havoc. Mason and his wife Pamela produced and wrote the film themselves, based on Pamela's novel Del Palma (originally published as A Lady Possessed in Britain, 1943). They chose Pamela's ex-husband Roy Kellino, with whom she remained close, to direct the film. It was a critical and commercial failure, losing the Masons much of the money they had invested in it.

The film's sets were designed by the art director Frank Arrigo.