Poids Mi-Lourds Hommes
 | Marvin Eastman | 1-4-0 UFC | #3272 |  |
 | Mataeo Garner | 0-1-0 REC | #5658 | |
 | Matej Surin | 1-0-0 REC | #7670 |  |
 | Mateusz Duczmal | 0-2-0 REC | #4275 |  |
 | Mateusz Strzelczyk | 5-6-0, 1NC REC | #1251 | |
 | Matt Hamill | 10-5-0 UFC | #612 | |
 | Matt Lucas | 0-1-0 UFC | #5012 | |
 | Matt Van Buren | 0-2-0 UFC | #6161 | |
 | Matthew Byfield | 2-1-0 REC | #5213 |  |
 | Matthew O'Rourke | 0-1-0 REC | #6509 |  |
 | Matvey Slyshkov | 0-2-0 REC | #4245 |  |
 | Maurice Smith | 4-3-0 UFC | #1252 | |
 | Mauricio Rua | 11-12-1 UFC | #402 |  |
 | Maxim Grishin | 2-3-0 UFC | #1078 | |
 | Mbamba Cauwenbergh | 0-1-0 REC | #5709 |  |
 | Meledje Yedoh | 1-2-0 REC | #2850 |  |
 | Melvin Manhoef | 0-1-0 REC | #4178 |  |
 | Mervin Miller | 2-0-0 REC | #5688 | |
 | Michael Kuiper | 1-3-0 UFC | #4252 | |
 | Michael Patt | 0-2-0 UFC | #5604 | |