| Election Name: | 1940 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1938 New Hampshire gubernatorial election |
| Previous Year: | 1938 |
| Next Election: | 1942 New Hampshire gubernatorial election |
| Next Year: | 1942 |
| Election Date: | November 5, 1940 |
| Nominee1: | Robert O. Blood |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 112,386 |
| Percentage1: | 50.74% |
| Nominee2: | F. Clyde Keefe |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 109,093 |
| Percentage2: | 49.26% |
| Map Size: | 245px |
| Governor | |
| Before Election: | Francis P. Murphy |
| Before Party: | Republican Party (United States) |
| After Election: | Robert O. Blood |
| After Party: | Republican Party (United States) |
The 1940 New Hampshire gubernatorial election was held on November 5, 1940. Republican nominee Robert O. Blood defeated Democratic nominee F. Clyde Keefe with 50.74% of the vote.
Primary elections were held on September 10, 1940.[1]