| Name | Title | Judicial District | County | Rate this Judge | Rating | # of Ratings |
| Hon. Jesse Margolis | Circuit Court Judge | Judicial District 15 | Curry |  | | 1 |
| Hon. Christopher Marshall | Circuit Court Judge | Judicial District 4 | Multnomah | | 9.3 | 2 |
| Hon. William Marshall | Circuit Court Judge | Judicial District 16 | Douglas | | | 0 |
| Hon. Jean Martwick | Circuit Court Judge | Judicial District 19 | Columbia | | | 0 |
| Hon. Judith Matarazzo | Circuit Court Judge | Judicial District 4 | Multnomah | | 9.0 | 1 |
| Hon. Cindee Matyas | Circuit Court Judge | Judicial District 18 | Clatsop | | 3.0 | 2 |
| Hon. Jean Kerr Maurer | Circuit Court Judge | Judicial District 4 | Multnomah | | 9.1 | 3 |
| Hon. Jay McAlpin | Circuit Court Judge | Judicial District 2 | Lane | | 1.0 | 4 |
| Hon. Patricia McGuire | Circuit Court Judge | Judicial District 4 | Multnomah | | | 1 |
| Hon. Thomas McHill | Circuit Court Judge | Judicial District 23 | Linn | | 1.0 | 1 |
| Hon. Dawn McIntosh | Circuit Court Judge | Judicial District 18 | Clatsop | | | 3 |
| Hon. Karrie McIntyre | Circuit Court Judge | Judicial District 2 | Lane | | 10.0 | 1 |
| Hon. Maureen McKnight | Circuit Court Judge | Judicial District 4 | Multnomah | | 9.0 | 1 |
| Hon. Lorenzo Mejia | Circuit Court Judge | Judicial District 1 | Jackson | | 8.6 | 2 |
| Hon. Ricardo Menchaca | Circuit Court Judge | Judicial District 20 | Washington | | | 1 |
| Hon. Maurice Merten | Circuit Court Judge | Judicial District 2 | Lane | | | 0 |
| Hon. Eve Miller | Circuit Court Judge | Judicial District 5 | Clackamas | | 9.3 | 1 |
| Hon. Randy Miller | Circuit Court Judge | Judicial District 11 | Deschutes | | | 1 |
| Hon. Douglas Mitchell | Circuit Court Judge | Judicial District 2 | Lane | | 6.8 | 2 |
| Hon. Josephine Mooney | Circuit Court Judge | Judicial District 2 | Lane | | 3.0 | 2 |
| Hon. Daniel Murphy | Circuit Court Judge | Judicial District 23 | Linn | | | 0 |