Detour is a 1945 American independent film noir directed by Edgar G. Ulmer and starring Tom Neal and Ann Savage. The screenplay was adapted by Martin Goldsmith and an uncredited Martin Mooney from Goldsmith's 1939 novel of the same title, and released by the Producers Releasing Corporation, one of the so-called Poverty Row film studios in mid-20th-century Hollywood.

The film, which today is in the public domain and freely available for viewing at various online sources, was restored by the Academy Film Archive in 2018. In April that year, the 4K restoration premiered in Los Angeles at the TCM Festival. In 1992, Detour was selected for the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".