Poids Lourds Hommes
 | Marcelo Golm | 1-3-0 UFC | #3316 |  |
 | Marcin Tybura | 14-11-0 UFC | #201 |  |
 | Marco Ruas | 4-2-0 UFC | #2491 | |
 | Marcos Rogerio de Lima | 11-7-0 UFC | #623 | |
 | Marcus Almeida | 0-2-1 UFC | #1808 | |
 | Marcus Bossett | 1-2-0 UFC | #4026 |  |
 | Marcus Jones | 0-1-0 UFC | #4753 | |
 | Marcus Silveira | 0-1-0, 1NC UFC | #5320 | |
 | Marek Bujlo | 0-1-0 UFC | #3617 | |
 | Mario Neto | 0-1-0 UFC | #5452 | |
 | Mario Pinto | 3-0-0 UFC | #593 |  |
 | Mark Godbeer | 2-2-0 UFC | #4143 |  |
 | Mark Hunt | 8-8-1, 1NC UFC | #690 |  |
 | Mark Kerr | 4-0-0 UFC | #1977 | |
 | Mark Robinson | #7670 | | |
 | Martin Buday | 7-1-0 UFC | #632 |  |
 | Masutatsu Yano | 0-1-0 UFC | #6724 |  |
 | Matt Andersen | 0-1-0 UFC | #6092 | |
 | Matt Mitrione | 9-5-0 UFC | #1020 | |
 | Maurice Greene | 4-4-0 UFC | #2053 | |