Poids Mouches Hommes
 | Manel Kape | 8-3-0 UFC | #73 |  |
 | Mansur Nashaev | 1-0-0 REC | #3328 |  |
 | Mansur Sadykov | 1-1-0 REC | #2689 | |
 | Manuel Medina | 2-0-0 REC | #4590 |  |
 | Marciano Ferreira | 1-0-0 REC | #7874 |  |
 | Marcos Degli | 5-0-0 REC | #1255 | |
 | Marcus Vinicius Ferreira | 1-0-0 REC | #3677 | |
 | Mario Ferreira | 0-1-0 REC | #5472 |  |
 | Mark Climaco | 2-1-0 REC | #4814 | |
 | Mason Carzino-Hartshorn | #8249 | | |
 | Masud Zamonov | 0-1-0 REC | #7147 |  |
 | Mateus Brauns | 0-1-0 REC | #5916 | |
 | Mateus Mendonca | 0-3-0 UFC | #3644 | |
 | Matheus Nicolau | 7-4-0 UFC | #1327 | |
 | Matheus Severino | 2-1-0 REC | #1938 | |
| Matheus Silva | 0-1-0 REC | #5905 | |
 | Matt Schnell | 7-9-0, 1NC UFC | #882 | |
 | Matthew Friel | 0-2-0 REC | #5403 |  |
 | Mauro Gutierrez | 0-1-0 REC | #6966 |  |
 | Maxim Kozhevnikov | 1-0-0 REC | #3609 | |