| Election Name: | 1918 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Flag Year: | 1909 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1916 New Hampshire gubernatorial election |
| Previous Year: | 1916 |
| Next Election: | 1920 New Hampshire gubernatorial election |
| Next Year: | 1920 |
| Election Date: | November 5, 1918 |
| Nominee1: | John H. Bartlett |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 38,228 |
| Percentage1: | 54.13% |
| Nominee2: | Nathaniel E. Martin |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 32,383 |
| Percentage2: | 45.86% |
| Governor | |
| Before Party: | Republican Party (United States) |
| After Election: | John H. Bartlett |
| After Party: | Republican Party (United States) |
The 1918 New Hampshire gubernatorial election was held on November 5, 1918. Republican nominee John H. Bartlett defeated Democratic nominee Nathaniel E. Martin with 54.13% of the vote.