It's the Old Army Game is a 1926 American silent comedy film starring W. C. Fields and Louise Brooks. The film was directed by Eddie Sutherland and co-stars Sutherland's aunt, the stage actress Blanche Ring in one of her few silent film appearances. The film is based on the revue The Comic Supplement by Joseph P. McEvoy and Fields, and included several skits from Fields' stage plays. The "army game" in the title is in reference to a shell game, a confidence trick which Fields’ character observes being played. "It's the old army game," he says, sagely.

Large sections of the film, including the "picnic" and "sleeping on the porch" scenes, were incorporated into Fields' classic talkie film It's a Gift (1934).