Murder by Death is a 1976 American comedy mystery film directed by Robert Moore and written by Neil Simon. The film stars Eileen Brennan, Truman Capote, James Coco, Peter Falk, Alec Guinness, Elsa Lanchester, David Niven, Peter Sellers, Maggie Smith, Nancy Walker, and Estelle Winwood.

The plot is a broad parody or spoof of the traditional country-house whodunit, familiar to mystery fiction fans of classics such as Agatha Christie's And Then There Were None. The cast is an ensemble of British and American actors playing send-ups of well-known fictional sleuths, including Hercule Poirot, Miss Marple, Charlie Chan, Nick and Nora Charles, and Sam Spade. It also features a rare acting performance by author Truman Capote.

The film was presented at the Venice International Film Festival on September 5, 1976.