| Name | Title | Circuit | County | Rate this Judge | Rating | # of Ratings |
| Hon. James Mann, Jr. | Associate District Judge | 8th Circuit | Baltimore City |  | | 0 |
| Hon. Thomas Marshall | Associate Judge | 3rd Circuit | Harford | | 5.4 | 3 |
| Hon. Timothy Martin | Associate Judge | 3rd Circuit | Baltimore County | | 9.4 | 2 |
| Hon. Larnzell Martin, Jr. | Associate Judge | 7th Circuit | Prince George's | | 9.5 | 9 |
| Hon. Michael Mason | Associate Judge | 6th Circuit | Montgomery | | 7.4 | 8 |
| Hon. Karen Mason | Associate Judge | 7th Circuit | Prince George's | | | 0 |
| Hon. Albert Matricciani, Jr. | Associate Judge | 8th Circuit | Baltimore City | | 8.6 | 17 |
| Hon. Mary Beth McCormick | Associate Judge | 6th Circuit | Montgomery | | 3.7 | 7 |
| Hon. Timothy McCrone | Associate Judge | 5th Circuit | Howard | | 8.7 | 15 |
| Hon. John McDowell | Associate Judge | 4th Circuit | Washington | | 5.3 | 1 |
| Hon. Terrence McGann | Associate Judge | 6th Circuit | Montgomery | | 2.4 | 39 |
| Hon. John Philip Miller | Associate Judge | 8th Circuit | Baltimore City | | 1.4 | 2 |
| Hon. Thomas Miller III | Associate Judge | 5th Circuit | Anne Arundel | | 8.1 | 2 |
| Hon. Patricia Mitchell | Associate Judge | 6th Circuit | Montgomery | | | 0 |
| Hon. Crystal Mittelstaedt | Associate Judge | 7th Circuit | Prince George's | | 7.0 | 8 |
| Hon. John Moffett | Associate Judge | 6th Circuit | Montgomery | | 8.7 | 2 |
| Hon. John Morrissey | Associate Judge | 7th Circuit | Prince George's | | 9.5 | 5 |
| Hon. Danielle Mosley | Associate Judge | 5th Circuit | Anne Arundel | | 1.2 | 1 |
| Hon. William Mulford II | Associate Judge | 5th Circuit | Anne Arundel | | 8.3 | 12 |
| Hon. Daniel Mumford | Associate Judge | 1st Circuit | Worcester | | | 0 |
| Hon. M. Brooke Murdock | Associate Judge | 8th Circuit | Baltimore City | | 5.5 | 11 |
| Hon. Timothy Murphy | Associate District Judge | 8th Circuit | Baltimore City | | | 0 |