Four Stiffs and a Trombone (French: L'assassin jouait du trombone) is a Canadian crime comedy film, directed by Roger Cantin and released in 1991. The film stars Germain Houde as Augustin Marleau, a nighttime security guard at a film studio who entertains fantasies of being a film noir detective, and becomes involved in a murder investigation when a killer begins murdering employees of the studio.

The cast also includes Marc Labrèche, Raymond Bouchard, Normand Lévesque, Gildor Roy, France Castel and Paule Baillargeon.

A sequel film, The Revenge of the Woman in Black (La vengeance de la femme en noir), was released in 1997.