The Eternal Sin
- Blwyddyn: 1917
- Gwlad: United States of America
- Genre: Drama
- Stiwdio: Herbert Brenon Film Corporation, Selznick Pictures
- Allweddair: silent film, lost film, borgia, 15th century, borgias, lucrezia borgia
- Cyfarwyddwr: Herbert Brenon
- Cast: Florence Reed, William E. Shay, Stephen Grattan, Richard Barthelmess, Alex Shannon, A.G. Parker