Mumsy, Nanny, Sonny, and Girly, released as Girly outside the United Kingdom, is a 1970 British horror-comedy film directed by Freddie Francis and starring Michael Bryant and Ursula Howells.

Francis wanted the opportunity to direct a film over which he had complete creative control, instead of working on assignment from a studio (as was the case with his previous directorial efforts). He teamed with writer Brian Comport to build the movie around Oakley Court, which Francis had used for exterior shots in previous films. The script was based on a two-act play by Maisie Mosco titled Happy Family, which was adapted into a novella by screenwriter Brian Comport as Mumsy, Nanny, Sonny, and Girly. Although the film fared poorly in British cinemas, it enjoyed a brief, successful run in North America, then achieved status as a cult film.

Four inhabitants of a secluded manor house in England amuse themselves with a bizarre role-playing game.