Poids Moyens Hommes
 | Mailton Azevedo | 0-1-0 REC | #5977 |  |
 | Maiquel Falcao | 1-0-0 UFC | #5885 | |
 | Makhmud Muradov | 4-2-0, 1NC UFC | #367 |  |
 | Maki Pitolo | 1-5-0 UFC | #3369 |  |
 | Maksymilian Kowalski | 0-1-0 REC | #6502 |  |
 | Malik Abdurakhmanov | 3-0-0 REC | #1698 |  |
 | Mamed Khalidov | 3-1-0 REC | #2451 | |
 | Mansur Abdul-Malik | 3-2-0, 1NC UFC | #512 | |
 | Mantas Kondratavicius | 1-0-0 UFC | #1259 |  |
 | Manuel Delmoko | 1-0-0 REC | #1667 |  |
 | Marc-Andre Barriault | 6-10-0, 1NC UFC | #879 |  |
 | Marcel Fortuna | 1-2-0 UFC | #4270 | |
| Marcelis Edwards | #8311 | | |
 | Marcelo Guimaraes | 2-2-0 UFC | #3841 | |
 | Marcio Cabral | 2-1-0 REC | #1147 | |
 | Marcio Martins | 0-1-0 REC | #7119 | |
 | Marco Tulio | 2-2-0 UFC | #838 | |
| Marcos Silva | 0-1-0 REC | #7628 | |
| Marcos Vinicius | 0-1-0 REC | #5513 | |
 | Marcus Nash | 2-0-0 REC | #1097 | |