Once a Thief
- Yıl: 1950
- Ülke: United States of America
- Tür: Suç, Dram
- Stüdyo: W. Lee Wilder Productions
- Anahtar kelime: con man, film noir, shoplifting
- Yönetmen: W. Lee Wilder
- Oyuncular: Cesar Romero, June Havoc, Marie McDonald, Lon Chaney Jr., Iris Adrian, Jack Daley