| Election Name: | 2024 Maine Senate election |
| Country: | Maine |
| Type: | legislative |
| Ongoing: | yes |
| Previous Election: | 2022 Maine Senate election |
| Previous Year: | 2022 |
| Next Election: | 2026 Maine Senate election |
| Next Year: | 2026 |
| Seats For Election: | All 35 seats in the Maine State Senate |
| Majority Seats: | 18 |
| Leader1: | Troy Jackson (term-limited) |
| Party1: | Democratic |
| Colour1: | 3333ff |
| Leader Since1: | December 7, 2016 |
| Leaders Seat1: | 1st – Allagash |
| Seats Before1: | 22 |
| Leader2: | Trey Stewart |
| Party2: | Republican |
| Colour2: | ff3333 |
| Leader Since2: | November 10, 2022 |
| Leaders Seat2: | 2nd – Presque Isle |
| Seats Before2: | 13 |
| Senate President | |
| Before Election: | Troy Jackson |
| Before Party: | Democratic |
| After Election: | Troy Jackson |
| After Party: | Democratic |
The 2024 Maine State Senate election will be held on Tuesday, November 5, 2024, with the primary election using instant-runoff voting to be held on June 11, 2024, to elect the 132nd Maine Senate.[1] Voters in all 35 districts of the Maine State Senate will elect their senators. The elections will coincide with the elections for other offices, including for U.S. President, U.S. Senate, U.S. House and the Maine House of Representatives.
Democrats have maintained control of the state senate since the 2018 election and the state house since the 2012 election.
Seven incumbents will not seek re-election.
One incumbent senator, a Republican, was defeated in the June 11 primary election.
See main article: e.