The Night Porter is a 1974 Italian psychological war drama film. Directed and co-written by Liliana Cavani, the film stars Dirk Bogarde and Charlotte Rampling, with Philippe Leroy, Gabriele Ferzetti, and Isa Miranda in supporting roles. Set in Vienna in 1957, the film centers on the sadomasochistic relationship between a former Nazi concentration camp officer (Bogarde) and one of his inmates (Rampling).

Liliana Cavani is an Italian film director and screenwriter. Cavani became internationally known after the success of her 1974 feature film Il portiere di notte. Her films have historical concerns. In addition to feature films and documentaries, she has also directed opera.