Poids Lourds Hommes
 | Marco Ruas | 4-2-0 UFC | #2373 |  |
 | Marcos Rogerio de Lima | 11-7-0 UFC | #558 | |
 | Marcus Almeida | 0-2-1 UFC | #1522 | |
 | Marcus Bossett | 1-2-0 UFC | #3870 |  |
 | Marcus Jones | 0-1-0 UFC | #4595 | |
 | Marcus Silveira | 0-1-0, 1NC UFC | #5091 | |
 | Marek Bujlo | 0-1-0 UFC | #3383 |  |
 | Mario Neto | 0-1-0 UFC | #5613 | |
 | Mario Pinto | 3-0-0 UFC | #428 |  |
 | Mark Godbeer | 2-2-0 UFC | #4035 |  |
 | Mark Hunt | 8-8-1, 1NC UFC | #695 |  |
 | Mark Kerr | 4-0-0 UFC | #1803 | |
 | Mark Robinson | #7212 | | |
 | Martin Buday | 7-1-0 UFC | #541 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6339 |  |
 | Matt Andersen | 0-1-0 UFC | #6346 | |
 | Matt Mitrione | 9-5-0 UFC | #1007 | |
 | Maurice Greene | 4-4-0 UFC | #1980 | |
 | Max Gimenis | 0-1-0 UFC | #2833 | |
 | Melton Bowen | 0-1-0 UFC | #6733 | |