| Term Start: | 1869 |
| Term End: | 1870 |
| Predecessor: | Rufus S. Frost |
| Birth Name: | James Brander Forsyth |
| Birth Date: | October 25, 1809 |
| Profession: | Physician |
James Brander Forsyth (October 25, 1809 – March 8, 1872) was a Massachusetts physician and politician who served as a city councilor, alderman and as the sixth Mayor of Chelsea, Massachusetts.