The Mystery Girl
- Bliain: 1918
- Tír: United States of America
- Seánra: Crime, Drama
- Stiúideo: Famous Players-Lasky Corporation
- Eochairfhocal:
- Stiúrthóir: William C. de Mille
- Caitheadh: Ethel Clayton, Henry Woodward, Clarence Burton, Charles West, Winter Hall, Mayme Kelso
