| James M. Quinby | |
| Office: | 10th Mayor of Newark |
| Term Start: | 1851 |
| Term End: | 1854 |
| Predecessor: | James Miller |
| Successor: | Horace J. Poinier |
| Office1: | Member of the New Jersey Senate from Essex County |
| Term Start1: | 1861 |
| Term End1: | 1864 |
| Predecessor1: | Charles L. C. Gifford |
| Successor1: | John G. Trusdell |
| Birth Date: | 4 October 1804 |
| Birth Place: | Orange, New Jersey |
| Death Place: | Newark, New Jersey |
| Party: | Whig Republican |
James M. Quinby (October 4, 1804 – July 20, 1874) was an American politician who served as the Mayor of Newark from 1851 to 1854.[1]