Poids Lourds Hommes
 | Marco Ruas | 4-2-0 UFC | #2440 |  |
 | Marcos Rogerio de Lima | 11-7-0 UFC | #565 | |
 | Marcus Almeida | 0-2-1 UFC | #1718 | |
 | Marcus Bossett | 1-2-0 UFC | #3946 |  |
 | Marcus Jones | 0-1-0 UFC | #4707 | |
 | Marcus Silveira | 0-1-0, 1NC UFC | #5218 | |
 | Marek Bujlo | 0-1-0 UFC | #3498 |  |
 | Mario Neto | 0-1-0 UFC | #5511 | |
 | Mario Pinto | 3-0-0 UFC | #562 |  |
 | Mark Godbeer | 2-2-0 UFC | #4112 |  |
 | Mark Hunt | 8-8-1, 1NC UFC | #683 |  |
 | Mark Kerr | 4-0-0 UFC | #1892 | |
 | Mark Robinson | #7417 | | |
 | Martin Buday | 7-1-0 UFC | #541 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6517 |  |
 | Matt Andersen | 0-1-0 UFC | #6190 | |
 | Matt Mitrione | 9-5-0 UFC | #1013 | |
 | Maurice Greene | 4-4-0 UFC | #2034 | |
 | Max Gimenis | 0-1-0 UFC | #2817 | |
 | Melton Bowen | 0-1-0 UFC | #7015 | |