| Name | Title | Court | County | Town | Rate this Judge | Rating | # of Ratings |
| Hon. Karen O'Connor | Superior Court Judge |
Superior Court
| Maricopa | Phoenix |  | 9.4 | 1 |
| Hon. William O'Neil | Superior Court Judge |
Superior Court
| Pinal | Florence | | | 0 |
| Hon. Robert Oberbillig | Superior Court Judge |
Superior Court
| Maricopa | Phoenix | | | 0 |
| Hon. Brenda Oldham | Superior Court Judge |
Superior Court
| Pinal | Florence | | 1.8 | 13 |
| Hon. Robert Carter Olson | Superior Court Judge |
Superior Court
| Pinal | Florence | | | 0 |
| Hon. Michael Orcutt | Judge |
Justice of the Peace Court
| Maricopa | Arcadia Biltmore | | | 0 |
| Hon. John Ore | Judge |
Justice of the Peace Court
| Maricopa | University Lakes | | | 0 |
| Hon. G. M. Osterfeld | Judge |
Justice of the Peace Court
| Maricopa | Estrella Mountain | | | 0 |