| Election Name: | 1800 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1799 New Hampshire gubernatorial election |
| Previous Year: | 1799 |
| Next Election: | 1801 New Hampshire gubernatorial election |
| Next Year: | 1801 |
| Election Date: | March 11, 1800 |
| Nominee1: | John Taylor Gilman |
| Party1: | Federalist Party (United States) |
| Popular Vote1: | 10,362 |
| Percentage1: | 61.82% |
| Nominee2: | Timothy Walker |
| Party2: | Democratic-Republican Party (United States) |
| Popular Vote2: | 6,039 |
| Percentage2: | 36.03% |
| Governor | |
| Before Election: | John Taylor Gilman |
| Before Party: | Federalist Party (United States) |
| After Election: | John Taylor Gilman |
| After Party: | Federalist Party (United States) |
The 1800 New Hampshire gubernatorial election took place on March 11, 1800. Incumbent Federalist Governor John Taylor Gilman won re-election to a seventh term, defeating Democratic-Republican candidate Timothy Walker.