Buck Privates is a 1941 American musical military comedy film directed by Arthur Lubin that turned Bud Abbott and Lou Costello into bona fide movie stars. It was the first service comedy based on the peacetime draft of 1940. The comedy team made two more service comedies before the United States entered the war (In the Navy and Keep 'Em Flying). A sequel to this movie, Buck Privates Come Home, was released in 1947. Buck Privates is one of three Abbott and Costello films featuring The Andrews Sisters, who were also under contract to Universal Pictures at the time.

Abbott and Costello performed a one-hour radio adaptation of the film on the Lux Radio Theatre on October 13, 1941.