| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Sergey | Morozov | 5' 6" | 135 lbs. | 67.0" | Orthodox | 19 | 5 | 0 | ||
| Brad | Morris | 6' 2" | 205 lbs. | -- | Orthodox | 10 | 6 | 0 | ||
| Scott | Morris | 5' 10" | 210 lbs. | -- | Orthodox | 2 | 1 | 0 | ||
| Anthony | Morrison | Cheesesteak | 5' 7" | 145 lbs. | -- | Orthodox | 20 | 12 | 0 | |
| Jack | Morrison | 5' 11" | 205 lbs. | -- | 0 | 3 | 0 | |||
| Harry | Moskowitz | Dirty | 6' 5" | 275 lbs. | -- | Orthodox | 6 | 12 | 0 | |
| Carlos | Mota | Tizil | 5' 4" | 125 lbs. | 69.0" | Orthodox | 8 | 2 | 0 | |
| Juan | Mott | 6' 0" | 190 lbs. | -- | Switch | 3 | 4 | 0 | ||
| Nikolas | Motta | Iron | 5' 9" | 155 lbs. | 70.0" | Orthodox | 13 | 5 | 0 | |
| Flavio Luiz | Moura | 5' 11" | 183 lbs. | -- | Open Stance | 19 | 7 | 0 | ||
| Eduarda | Moura | Ronda | 5' 6" | 115 lbs. | 67.0" | Orthodox | 9 | 0 | 0 | |
| Gegard | Mousasi | 6' 2" | 185 lbs. | 76.0" | Orthodox | 42 | 6 | 2 | ||
| Kris | Moutinho | 5' 7" | 135 lbs. | 68.0" | Southpaw | 9 | 6 | 0 | ||
| Kin | Moy | Kong | 5' 5" | 135 lbs. | -- | 8 | 3 | 0 | ||
| Jamie | Moyle | 5' 1" | 115 lbs. | 65.0" | Orthodox | 4 | 3 | 0 | ||
| Askar | Mozharov | 6' 3" | 205 lbs. | 74.0" | Orthodox | 19 | 13 | 0 | ||
| Garrett | Mueller | 5' 9" | 135 lbs. | -- | 3 | 3 | 0 | |||
| Lauren | Mueller | Princess Tiger | 5' 5" | 125 lbs. | 67.0" | Orthodox | 5 | 3 | 0 | |
| Belal | Muhammad | Remember the Name | 5' 11" | 170 lbs. | 72.0" | Orthodox | 23 | 3 | 0 | |
| Fazlo | Mulabitinovic | -- | 135 lbs. | -- | 4 | 2 | 0 | |||
| Quinn | Mulhern | 6' 3" | 155 lbs. | -- | Orthodox | 18 | 4 | 0 | ||
| James | Mulheron | 5' 10" | 243 lbs. | 73.0" | Orthodox | 11 | 2 | 0 | ||
| Jamie | Mullarkey | 6' 0" | 155 lbs. | 74.0" | Orthodox | 17 | 6 | 0 | ||
| Jim | Mullen | 6' 1" | 215 lbs. | -- | Southpaw | 0 | 2 | 0 |