1946 United States Senate election in Maine

The 1946 United States Senate election in Maine was held on September 9, 1946.

Incumbent Republican Senator Owen Brewster was re-elected to a second term in office over Democrat Peter McDonald.

Candidates

 * Owen Brewster, incumbent Senator since 1941

Results
Senator Brewster was unopposed for re-nomination.

Candidates

 * Peter McDonald, unsuccessful candidate for U.S. Representative in 1940

Results
McDonald was unopposed for the Democratic nomination.