The 2024 Maine Senate election was held on Tuesday, November 5, 2024, with the primary election using instant-runoff voting held on June 11, 2024, to elect the 132nd Maine Senate. Voters in all 35 districts of the Maine Senate elected their senators. The elections coincided 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 of Representatives since the 2012 election.
Seven incumbents did not seek re-election.
One incumbent senator, a Republican, was defeated in the June 11 primary election.
Italics denote an open seat held by the incumbent party; bold text denotes a gain for a party.