| Election Name: | 1812 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1811 New Hampshire gubernatorial election |
| Previous Year: | 1811 |
| Next Election: | 1813 New Hampshire gubernatorial election |
| Next Year: | 1813 |
| Election Date: | March 10, 1812 |
| Nominee1: | William Plumer |
| Party1: | Democratic-Republican Party |
| Electoral Vote1: | 104 |
| Popular Vote1: | 15,492 |
| Percentage1: | 48.44% |
| Nominee2: | John Taylor Gilman |
| Party2: | Federalist Party (United States) |
| Electoral Vote2: | 82 |
| Popular Vote2: | 15,613 |
| Percentage2: | 48.82% |
| Map Size: | 150px |
| Governor | |
| Before Election: | John Langdon |
| Before Party: | Democratic-Republican Party |
| After Election: | William Plumer |
| After Party: | Democratic-Republican Party |
The 1812 New Hampshire gubernatorial election was held on March 10, 1812.[1]
Incumbent Governor John Langdon did not run for re-election.[2]
Democratic-Republican candidate William Plumer defeated Federalist candidate and Former Governor of New Hampshire John Taylor Gilman.
Since no candidate received a majority in the popular vote, Plumer was elected by the New Hampshire General Court per the state constitution.
As no candidate received a majority of the vote, the New Hampshire General Court was required to decide the election, both Houses in convention choosing among the top two vote-getters, Gilman and Plumer. The legislative election was held on June 4, 1812.