Poids Lourds Hommes
 | Mark Kerr | 4-0-0 UFC | #1940 |  |
 | Mark Robinson | #7577 | | |
 | Marsel Sychev | #7605 |  | |
 | Martin Buday | 7-1-0 UFC | #601 |  |
 | Masashi Inada | 1-1-0 REC | #4191 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6497 | |
 | Matheus Fonseca | 0-1-0 REC | #6695 |  |
 | Matheus Scheffel | 3-7-0, 1NC REC | #2903 | |
 | Matt Adams | 3-2-0 REC | #1724 | |
 | Matt Andersen | 0-1-0 UFC | #6052 | |
 | Matt Mitrione | 9-5-0 UFC | #1011 | |
 | Matunga Djikasa | 0-1-0 REC | #5425 |  |
 | Matusalem dos Santos | 0-1-0 REC | #6119 | |
 | Maurice Greene | 4-4-0 UFC | #2034 | |
 | Mauricio Queiroz | 0-1-0 REC | #6847 | |
 | Mauro Cerilli | 1-0-0 REC | #2067 |  |
 | Max Gimenis | 0-1-0 UFC | #2844 | |
 | Max Yoshida | 0-1-0 REC | #5391 | |
 | Maxwell Djantou Nana | 3-1-0 REC | #1145 |  |
 | Melton Bowen | 0-1-0 UFC | #6993 | |