| Election Name: | 2026 United States Senate election in New Hampshire |
| Country: | New Hampshire |
| Type: | presidential |
| Ongoing: | yes |
| Previous Election: | 2020 United States Senate election in New Hampshire |
| Previous Year: | 2020 |
| Next Election: | 2032 United States Senate election in New Hampshire |
| Next Year: | 2032 |
| Election Date: | November 3, 2026 |
| Party1: | Democratic Party (United States) |
| Party2: | Republican Party (United States) |
| U.S. senator | |
| Before Election: | Jeanne Shaheen |
| Before Party: | Democratic Party (United States) |
The 2026 United States Senate election in New Hampshire will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of New Hampshire. Incumbent three-term Democratic Senator Jeanne Shaheen, who was re-elected in 2020, is running for re-election to a fourth term in office.