A Certain Mister (French: Un certain monsieur) is a 1950 French crime film directed by Yves Ciampi and starring René Dary, Hélène Perdrière and Pierre Destailles.

The film's sets were designed by the art director Lucien Carré.

The script is based on Jean Le Hallier's 1947 novel of the same title.

[2] When documents vital to French national security are stolen, the police join forces with three master criminals in order to recover them.

This article related to a French film of the 1950s is a stub.