Once a Thief
- Ár: 1950
- Land: United States of America
- Genre: Crime, Drama
- Stúdíó: W. Lee Wilder Productions
- Lykilorð: con man, film noir, shoplifting
- Leikstjóri: W. Lee Wilder
- Leikarar: Cesar Romero, June Havoc, Marie McDonald, Lon Chaney Jr., Iris Adrian, Jack Daley