The 1956 Maine gubernatorial election took place on September 10, 1956. Incumbent Democratic Governor Edmund Muskie was seeking re-election, and faced off against Republican Willis A. Trafton, Jr. in the general election. Extremely popular, Muskie was able to easily win re-election.
Results.
! scope="col" colspan="2" style="width: 130px"|Party
! scope="col" style="width: 17em"|Candidate
! scope="col" style="width: 5em"|Votes
! scope="col" style="width: 3.5em"|%
! scope="col" style="width: 3.5em"| ;templatestyles src="Template:Tooltip/styles.css" / ;±%
! colspan="3" style="text-align: right; margin-right: 0.5em" | Majority
Notes.
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