Poids Lourds Hommes
 | Marco Ruas | 4-2-0 UFC | #2480 |  |
 | Marcos Rogerio de Lima | 11-7-0 UFC | #603 | |
 | Marcus Almeida | 0-2-1 UFC | #1775 | |
 | Marcus Bossett | 1-2-0 UFC | #3966 |  |
 | Marcus Jones | 0-1-0 UFC | #4719 | |
 | Marcus Silveira | 0-1-0, 1NC UFC | #5244 | |
 | Marek Bujlo | 0-1-0 UFC | #3530 |  |
 | Mario Neto | 0-1-0 UFC | #5535 | |
 | Mario Pinto | 3-0-0 UFC | #636 |  |
 | Mark Godbeer | 2-2-0 UFC | #4132 |  |
 | Mark Hunt | 8-8-1, 1NC UFC | #710 |  |
 | Mark Kerr | 4-0-0 UFC | #1937 | |
 | Mark Robinson | #7517 | | |
 | Martin Buday | 7-1-0 UFC | #591 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6545 |  |
 | Matt Andersen | 0-1-0 UFC | #6230 | |
 | Matt Mitrione | 9-5-0 UFC | #1016 | |
 | Maurice Greene | 4-4-0 UFC | #2044 | |
 | Max Gimenis | 0-1-0 UFC | #2826 | |
 | Melton Bowen | 0-1-0 UFC | #7024 | |