The 1802 New Hampshire gubernatorial election took place on March 9, 1802. Incumbent Federalist Governor John Taylor Gilman won re-election to a ninth term, defeating Democratic-Republican candidate, former Governor and U.S. Senator John Langdon.
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Results
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Federalist | John Taylor Gilman (incumbent) | 10,377 | 54.14% | ||
| Democratic-Republican | John Langdon | 8,753 | 45.67% | ||
| Scattering | 36 | 0.19% | |||
| Majority | 1,624 | 8.47% | |||
| Turnout | 19,166 | 100.00% | |||
| Federalist hold | Swing | ||||