The United States Senate election in Maine was held on November 5, 2024, with the primary elections having taken place on June 11, 2024. Incumbent Independent U.S. Senator Angus King ran for re-election. King will face Republican Demitroula Kouzounas and Democrat David Costello in the general election. Angus King won the election with 52.06% of the vote.

Note: Angus King is an Independent, but caucuses with the democrats in the U.S. Senate.