| Election Name: | 1972 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1970 New Hampshire gubernatorial election |
| Previous Year: | 1970 |
| Next Election: | 1974 New Hampshire gubernatorial election |
| Next Year: | 1974 |
| Election Date: | November 7, 1972 |
| Nominee1: | Meldrim Thomson Jr. |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 133,702 |
| Percentage1: | 41.38% |
| Nominee2: | Roger J. Crowley |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 126,107 |
| Percentage2: | 39.03% |
| Nominee3: | Malcolm McLane |
| Party3: | Independent (politician) |
| Popular Vote3: | 63,199 |
| Percentage3: | 19.56% |
| Governor | |
| Before Election: | Walter R. Peterson Jr. |
| Before Party: | Republican Party (United States) |
| After Election: | Meldrim Thomson Jr. |
| After Party: | Republican Party (United States) |
The 1972 New Hampshire gubernatorial election was held on November 7, 1972.
Incumbent Republican Governor Walter R. Peterson Jr. was defeated for renomination in the Republican primary.
Republican nominee Meldrim Thomson Jr. defeated Democratic nominee Roger J. Crowley with 41.38% of the vote.
Primary elections were held on September 12, 1972.