| The Mortal Sin | |
| Director: | John H. Collins |
| Starring: | Viola Dana |
| Cinematography: | John Arnold |
| Studio: | Columbia Pictures Corporation |
| Distributor: | Metro Pictures |
| Runtime: | 5 reels |
| Country: | United States |
| Language: | Silent. (English intertitles) |
The Mortal Sin is a lost[1] 1917 silent film drama directed by John H. Collins and distributed by Metro Pictures. Viola Dana, at the time Collins's wife, stars in the picture.[2]