Suddenly, Last Summer is a 1959 Southern Gothic psychological drama mystery film based on the 1958 play of the same name by Tennessee Williams. The film was shot in England and Spain. It was directed by Joseph L. Mankiewicz and produced by Sam Spiegel from a screenplay by Gore Vidal and Williams with cinematography by Jack Hildyard and production design by Oliver Messel. The musical score was composed by Buxton Orr, using themes by Malcolm Arnold.

The plot centers on Catherine Holly, a young woman who, at the insistence of her wealthy aunt, is being evaluated by a psychiatric doctor to receive a lobotomy after witnessing the death of her cousin Sebastian Venable while traveling with him in the (fictional) island of Cabeza de Lobo the previous summer.

The film stars Katharine Hepburn, Elizabeth Taylor and Montgomery Clift with Albert Dekker, Mercedes McCambridge, and Gary Raymond.