A Certain Monsieur Jo (French: Un certain Monsieur Jo) is a 1958 French crime film directed by René Jolivet and starring Michel Simon, Geneviève Kervine and Jacques Morel.
The film's sets were designed by the art director Lucien Carré.
A former gangster now happily retired and running an inn on the banks of the river Marne, is pulled back into his former life when a pair of kidnappers bring a girl they have taken to his inn and demands he shelter them.