| Election Name: | 1815 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1814 New Hampshire gubernatorial election |
| Previous Year: | 1814 |
| Next Election: | 1816 New Hampshire gubernatorial election |
| Next Year: | 1816 |
| Election Date: | March 14, 1815 |
| Nominee1: | John Taylor Gilman |
| Party1: | Federalist Party (United States) |
| Popular Vote1: | 18,357 |
| Percentage1: | 50.72% |
| Nominee2: | William Plumer |
| Party2: | Democratic-Republican Party |
| Popular Vote2: | 17,799 |
| Percentage2: | 49.18% |
| Governor | |
| Before Election: | John Taylor Gilman |
| Before Party: | Federalist Party (United States) |
| After Election: | John Taylor Gilman |
| After Party: | Federalist Party (United States) |
The 1815 New Hampshire gubernatorial election was held on March 14, 1815.[1]
Incumbent Federalist Governor John Taylor Gilman defeated Democratic-Republican nominee William Plumer in a re-match of the previous year's election.