| Name | Title | Judicial District | County | Rate this Judge | Rating | # of Ratings |
| Hon. Michael Marcus | Circuit Court Judge | Judicial District 4 | Multnomah |  | 8.0 | 4 |
| Hon. Jesse Margolis | Circuit Court Judge | Judicial District 15 | Curry | | | 0 |
| Hon. Christopher Marshall | Circuit Court Judge | Judicial District 4 | Multnomah | | | 0 |
| Hon. Judith Matarazzo | Circuit Court Judge | Judicial District 4 | Multnomah | | | 0 |
| 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 | 2 |
| Hon. Steven Maurer | Circuit Court Judge | Judicial District 5 | Clackamas | | 9.3 | 1 |
| Hon. John McCormick | Circuit Court Judge | Judicial District 23 | Linn | | | 0 |
| Hon. Rick McCormick | Circuit Court Judge | Judicial District 23 | Linn | | | 0 |
| Hon. Maureen McKnight | Circuit Court Judge | Judicial District 4 | Multnomah | | | 0 |
| Hon. Michael McShane | Circuit Court Judge | Judicial District 4 | Multnomah | | | 0 |
| Hon. Keith Meisenheimer | Circuit Court Judge | Judicial District 4 | Multnomah | | | 0 |
| Hon. Lorenzo Mejia | Circuit Court Judge | Judicial District 1 | Jackson | | | 0 |
| Hon. Phillip Mendiguren | Circuit Court Judge | Judicial District 10 | Union | | | 2 |
| 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. Douglas Mitchell | Circuit Court Judge | Judicial District 2 | Lane | | 6.8 | 2 |
| Hon. Daniel Murphy | Circuit Court Judge | Judicial District 23 | Linn | | | 0 |