Poids Lourds Hommes
 | Mark Kerr | 4-0-0 UFC | #1961 |  |
 | Mark Robinson | #7687 | | |
 | Marsel Sychev | #7609 |  | |
 | Martin Buday | 7-1-0 UFC | #624 |  |
 | Masashi Inada | 1-1-0 REC | #4300 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6739 | |
 | Matheus Fonseca | 0-1-0 REC | #6866 |  |
 | Matheus Scheffel | 3-7-0, 1NC REC | #2893 | |
 | Matt Adams | 3-3-0 REC | #1793 | |
 | Matt Andersen | 0-1-0 UFC | #6078 | |
 | Matt Mitrione | 9-5-0 UFC | #994 | |
 | Matunga Djikasa | 0-1-0 REC | #5343 |  |
 | Matusalem dos Santos | 0-1-0 REC | #6058 | |
 | Maurice Greene | 4-4-0 UFC | #2051 | |
 | Mauricio Queiroz | 0-1-0 REC | #6670 | |
 | Mauro Cerilli | 1-0-0 REC | #2227 |  |
 | Max Gimenis | 0-1-0 UFC | #2896 | |
 | Max Yoshida | 0-1-0 REC | #5521 | |
 | Maxwell Djantou Nana | 4-1-0 REC | #248 |  |
 | Melton Bowen | 0-1-0 UFC | #7057 | |