The Solitary Sin
- Sal: 1919
- Welat: United States of America
- Genre: Drama
- Studio: New Art Film Company, Solitary Sin Corporation, Public Welfare Pictures Corp.
- Keyword: insane asylum, hospital, masturbation, syphilis, sexually transmitted disease, venereal diseases
- Serek: Frederick Sullivan
- Avdan: Jack Mulhall, Helene Chadwick, Gordon Griffith, Leo Pierson, Pauline Curley, Charles Spere
