T-Men is a 1947 semidocumentary and police procedural style film noir about United States Treasury agents. The film was directed by Anthony Mann and shot by noted noir cameraman John Alton. The production features Dennis O'Keefe, Mary Meade, Alfred Ryder, Wallace Ford, June Lockhart and Charles McGraw. A year later, director Mann used the film's male lead, Dennis O'Keefe, in Raw Deal.

The film was endorsed by the U.S. Treasury Department: the opening credits are displayed over an image of the department's seal, then former Chief Coordinator of the department's six agencies Elmer Lincoln Irey delivers a monologue describing the objectives of those agencies and lauding their accomplishments. He describes the movie as a composite case from its files entitled "The Shanghai Paper Case".