| Name | Court | County | Rate this Judge | Rating | # of Ratings |
| Hon. Tammy O'Brien |
Court of Common
| Summit |  | | 0 |
| Hon. Timothy O'Connell |
Court of Common
| Montgomery | | | 0 |
| Hon. Mark O'Connor |
Court of Common
| Logan | | | 0 |
| Hon. Colleen O'Donnell |
Court of Common
| Franklin | | | 0 |
| Hon. John O'Donnell |
Court of Common
| Lake | | | 0 |
| Hon. John O'Donnell |
Court of Common
| Cuyahoga | | | 0 |
| Hon. Edward Emmett O'Farrell |
Court of Common
| Tuscarawas | | | 0 |
| Hon. Richard O'Neill |
Court of Common
| Clark | | | 0 |
| Hon. Donald Oda, II |
Court of Common
| Warren | | | 0 |
| Hon. Tim Oliver |
Court of Common
| Warren | | | 0 |
| Hon. Dominick Olivito, Jr. |
Court of Common
| Carroll | | | 0 |
| Hon. Patricia Oney |
Court of Common
| Butler | | | 0 |
| Hon. Michael Oster |
Court of Common
| Butler | | | 0 |