| In for Thirty Days | |
| Director: | Webster Cullison |
| Screenplay: | Thomas J. Geraghty (scenario) George D. Baker (scenario) |
| Story: | Luther A. Reed |
| Producer: | George D. Baker |
| Starring: | May Allison Robert Ellis Mayme Kelso |
| Cinematography: | William E. Fildew |
| Studio: | Metro Pictures |
| Runtime: | 5 reels |
| Country: | United States |
| Language: | English |
In for Thirty Days is a 1919 American silent comedy film, directed by Webster Cullison. It stars May Allison, Robert Ellis, and Mayme Kelso, and was released on January 27, 1919.