Poids Lourds Hommes
 | Marcus Bossett | 1-2-0 UFC | #4248 |  |
 | Marcus Jones | 0-1-0 UFC | #4939 | |
 | Marcus Silveira | 0-1-0, 1NC UFC | #5525 |  |
 | Marek Bujlo | 0-1-0 UFC | #3755 |  |
 | Marek Samociuk | 5-4-0 REC | #1939 | |
 | Mario Neto | 0-1-0 UFC | #5785 | |
 | Mario Piazzon | 1-1-0 REC | #3585 | |
 | Mario Pinto | 4-0-0 UFC | #142 |  |
 | Mariusz Pudzianowski | 0-3-0 REC | #3378 | |
 | Mark Currier | 0-1-0 REC | #7405 | |
 | Mark Godbeer | 2-2-0 UFC | #4302 |  |
 | Mark Hunt | 8-8-1, 1NC UFC | #716 |  |
 | Mark Kerr | 4-0-0 UFC | #1979 | |
 | Mark Robinson | #7950 | | |
 | Marsel Sychev | #7685 |  | |
 | Martin Buday | 7-1-0 UFC | #712 |  |
 | Masashi Inada | 1-1-0 REC | #4650 |  |
 | Masutatsu Yano | 0-1-0 UFC | #7149 | |
 | Matheus Fonseca | 0-1-0 REC | #7297 | |
 | Matheus Scheffel | 3-7-0, 1NC REC | #3021 | |