| Election Name: | 1912 Ohio gubernatorial election |
| Country: | Ohio |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1910 Ohio gubernatorial election |
| Previous Year: | 1910 |
| Next Election: | 1914 Ohio gubernatorial election |
| Next Year: | 1914 |
| Election Date: | November 5, 1912 |
| Image1: | File:James M. Cox 1920.jpg |
| Nominee1: | James M. Cox |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 439,323 |
| Percentage1: | 42.38% |
| Nominee2: | Robert B. Brown |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 272,500 |
| Percentage2: | 26.29% |
| Image4: | File:Arthur Lovett Garford.jpg |
| Nominee4: | Arthur Lovett Garford |
| Party4: | Progressive |
| Popular Vote4: | 217,903 |
| Percentage4: | 21.02% |
| Image5: | File:Ruthenberg-c-e-1910.jpg |
| Nominee5: | C. E. Ruthenberg |
| Party5: | Socialist Party USA |
| Popular Vote5: | 87,709 |
| Percentage5: | 8.46% |
| Map Size: | 210px |
| Governor | |
| Before Election: | Judson Harmon |
| Before Party: | Democratic Party (United States) |
| After Election: | James M. Cox |
| After Party: | Democratic Party (United States) |
The 1912 Ohio gubernatorial election was held on November 5, 1912. Democratic nominee James M. Cox defeated Republican nominee Robert B. Brown with 42.38% of the vote.
Major party candidates
Other candidates