Stalag 17 is a 1953 (1953 in film) war film which tells the story of a group of American airmen (United States Army Air Forces) ("Cookie stated in the introduction, sergeants - flight engineers, radio men and gunners") held in a German (Nazi Germany) World War II prisoner of war camp, who come to suspect that one of their number is a traitor. It was adapted from a Broadway (Broadway (theatre)) play.

Produced and directed by Billy Wilder, it starred William Holden, Don Taylor (Don Taylor (actor)), Robert Strauss (Robert Strauss (actor)), Neville Brand, Harvey Lembeck, and Peter Graves (Peter Graves (actor)) (Strauss and Lembeck both appeared in the original Broadway production); Wilder also cast Otto Preminger in the role of the evil camp commander.

The movie was adapted by Wilder and Edwin Blum from the Broadway play by Donald Bevan and Edmund Trzcinski who were both prisoners in Stalag XVII-B. (Trzcinski appears in the film as a prisoner.) The play was directed by Jos� Ferrer and was the Broadway debut of John Ericson (John Ericson (Actor)) as Sefton. It began its run in May 1951, continued for 472 performances and was based on the experiences of its authors, both of whom were POWs in Stalag 17B in Austria.