Poids Mi-Lourds Hommes
 | Marthin Hamlet | 6-4-0 REC | #2176 |  |
 | Martin Zawada | 0-3-0 REC | #4646 |  |
 | Marvin Eastman | 1-4-0 UFC | #3033 |  |
 | Mataeo Garner | 0-1-0 REC | #4958 | |
 | Matej Surin | 1-0-0 REC | #7008 |  |
 | Mateusz Duczmal | 0-2-0 REC | #3451 |  |
 | Mateusz Strzelczyk | 4-5-0, 1NC REC | #558 | |
 | Matt Hamill | 10-5-0 UFC | #531 | |
 | Matt Lucas | 0-1-0 UFC | #4500 | |
 | Matt Van Buren | 0-2-0 UFC | #5631 | |
 | Matthew Byfield | 2-1-0 REC | #4573 |  |
 | Matvey Slyshkov | 0-2-0 REC | #3580 |  |
 | Maurice Smith | 4-3-0 UFC | #1123 | |
 | Mauricio Rua | 11-12-1 UFC | #333 |  |
 | Maxim Grishin | 2-3-0 UFC | #806 | |
 | Mbamba Cauwenbergh | 0-1-0 REC | #5259 |  |
 | Meledje Yedoh | 1-1-0 REC | #2403 |  |
 | Melvin Manhoef | 0-1-0 REC | #3696 |  |
 | Mervin Miller | 2-0-0 REC | #5194 | |
 | Michael Kuiper | 1-3-0 UFC | #3910 | |