Knave of Hearts is a 1954 British-French comedy drama film directed by René Clément and starring Gérard Philipe, Valerie Hobson and Joan Greenwood. The film was shot at the Elstree Studios of Associated British and on location across London including Trafalgar Square and Hyde Park. The film's sets were designed by the art director Ralph Brinton. In France it was released as Monsieur Ripois, referencing the title of the original novel by Louis Hémon.

The film was entered into the 1954 Cannes Film Festival, where it won the Special Jury Prize.