| Election Name: | 1966 Ohio gubernatorial election |
| Country: | Ohio |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1962 Ohio gubernatorial election |
| Previous Year: | 1962 |
| Next Election: | 1970 Ohio gubernatorial election |
| Next Year: | 1970 |
| Election Date: | November 8, 1966 |
| Image1: | File:James Allen Rhodes 002.jpg |
| Nominee1: | Jim Rhodes |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 1,795,277 |
| Percentage1: | 62.18% |
| Nominee2: | Frazier Reams Jr. |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 1,092,054 |
| Percentage2: | 37.82% |
| Map Size: | 210px |
| Governor | |
| Before Party: | Republican Party (United States) |
| After Party: | Republican Party (United States) |
The 1966 Ohio gubernatorial election was held on November 8, 1966. Incumbent Republican Jim Rhodes defeated Democratic nominee Frazier Reams Jr. with 62.18% of the vote. This election was the first time since 1942 that an incumbent Republican Governor of Ohio was re-elected.
Primary elections were held on May 3, 1966.[1]