Poids Lourds Hommes
 | Marco Ruas | 4-2-0 UFC | #2382 |  |
 | Marcos Rogerio de Lima | 11-7-0 UFC | #567 | |
 | Marcus Almeida | 0-2-1 UFC | #1493 | |
 | Marcus Bossett | 1-2-0 UFC | #3897 |  |
 | Marcus Jones | 0-1-0 UFC | #4615 | |
 | Marcus Silveira | 0-1-0, 1NC UFC | #5109 | |
 | Marek Bujlo | 0-1-0 UFC | #3385 |  |
 | Mario Neto | 0-1-0 UFC | #5712 | |
 | Mario Pinto | 3-0-0 UFC | #408 |  |
 | Mark Godbeer | 2-2-0 UFC | #4022 |  |
 | Mark Hunt | 8-8-1, 1NC UFC | #706 |  |
 | Mark Kerr | 4-0-0 UFC | #1790 | |
 | Mark Robinson | #7209 | | |
 | Martin Buday | 7-1-0 UFC | #533 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6310 |  |
 | Matt Andersen | 0-1-0 UFC | #6345 | |
 | Matt Mitrione | 9-5-0 UFC | #1011 | |
 | Maurice Greene | 4-4-0 UFC | #1987 | |
 | Max Gimenis | 0-1-0 UFC | #2874 | |
 | Melton Bowen | 0-1-0 UFC | #6692 | |