| Election Name: | 2026 United States Senate election in Maine |
| Country: | Maine |
| Type: | presidential |
| Ongoing: | yes |
| Previous Election: | 2020 United States Senate election in Maine |
| Previous Year: | 2020 |
| Next Election: | 2032 United States Senate election in Maine |
| Next Year: | 2032 |
| Party1: | Republican Party (United States) |
| Party2: | Democratic Party (United States) |
| U.S. senator | |
| Before Election: | Susan Collins |
| Before Party: | Republican Party (United States) |
The 2026 United States Senate election in Maine will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Maine. Incumbent Republican Senator, Susan Collins is running for re-election. This will be the only Republican-held Senate seat up for election in 2026 in a state that Kamala Harris won in the 2024 presidential election.
First elected in 1996, Collins is considered one of the more moderate Republicans in the Senate. With Collins being a moderate and potential swing vote, she could face a more conservative primary opponent.[1]