H.M.S. Defiant is a British naval war CinemaScope and Technicolor film from 1962 starring Alec Guinness and Dirk Bogarde. It tells the story of a mutiny aboard the fictitious title ship at around the time of the Spithead mutiny in 1797. It was directed by Lewis Gilbert with a screenplay by Nigel Kneale from Frank Tilsley's novel Mutiny (1958). The film's world premiere occurred at the Odeon Leicester Square in London's West End on 22 February 1962.

Sir Dirk Bogarde was an English actor, novelist and screenwriter. Initially a matinée idol in films such as Doctor in the House (1954) for the Rank Organisation, he later acted in art house films, evolving from "heartthrob to icon of edginess".