| Election Name: | 1942 Maine gubernatorial election |
| Country: | Maine |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1940 Maine gubernatorial election |
| Previous Year: | 1940 |
| Next Election: | 1944 Maine gubernatorial election |
| Next Year: | 1944 |
| Election Date: | September 14, 1942 |
| Nominee1: | Sumner Sewall |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 118,047 |
| Percentage1: | 66.84% |
| Nominee2: | George W. Lane, Jr. |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 58,558 |
| Percentage2: | 33.16% |
| Map Size: | 300px |
| Governor | |
| Before Election: | Sumner Sewall |
| Before Party: | Republican Party (United States) |
| After Election: | Sumner Sewall |
| After Party: | Republican Party (United States) |
The 1942 Maine gubernatorial election took place on September 14, 1942. Incumbent Republican Governor Sumner Sewall was seeking a second term, and faced off against Democratic challenger George W. Lane, Jr. Sewall was able to easily win his re-election. This contest was the first gubernatorial election held after the entry of the United States into the second world war.