| Election Name: | 1956 Maine gubernatorial election |
| Country: | Maine |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1954 Maine gubernatorial election |
| Previous Year: | 1954 |
| Next Election: | 1958 Maine gubernatorial election |
| Next Year: | 1958 |
| Election Date: | September 10, 1956 |
| Nominee1: | Edmund Muskie |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 180,254 |
| Percentage1: | 59.17% |
| Nominee2: | Willis A. Trafton Jr. |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 124,395 |
| Percentage2: | 40.83% |
| Map Size: | 300px |
| Governor | |
| Before Election: | Edmund Muskie |
| Before Party: | Democratic Party (United States) |
| After Election: | Edmund Muskie |
| After Party: | Democratic Party (United States) |
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.