Combattants Brésil
| 676 |  | Macksom Lee | #1480 |  | |
| 677 |  | Magno Dias | #5482 | | |
| 678 |  | Magnus Kelly | 20-8-0 MMA | #3866 | |
| 679 |  | Mahamed Aly | #3152 | | |
| 680 |  | Maiara Amanajas | #7377 | | |
| 681 |  | Maicon Kobayashi | #7822 | | |
| 682 |  | Maicon Patricio | #1811 | | |
| 683 |  | Maike Linhares | #8021 | | |
| 684 |  | Mailton Azevedo | #6152 | | |
| 685 |  | Maiquel Falcao | 1-0-0 UFC | #6125 | |
| 686 |  | Maira Mazar | #6049 | | |
| 687 |  | Mairon Santos | 4-0-0 UFC | #969 | |
| 688 |  | Manoel Silva | #8182 | | |
| 689 |  | Manoel Sousa | 2-0-0 UFC | #564 | |
| 690 |  | Marcel Adur | #6070 | | |
| 691 |  | Marcel Fortuna | 1-2-0 UFC | #4435 | |
| 692 |  | Marcelo Aguiar | 0-1-0 UFC | #6401 | |
| 693 |  | Marcelo Golm | 1-3-0 UFC | #3399 | |
| 694 |  | Marcelo Guimaraes | 2-2-0 UFC | #3990 | |
| 695 |  | Marcelo Marques | #2692 | | |
| 696 |  | Marcelo Mello | 1-0-0 UFC | #5754 | |
| 697 |  | Marcelo Nunes | #3477 | | |
| 698 |  | Marciano Ferreira | #8003 | | |
| 699 |  | Marcio Alexandre Jr | 0-3-0 UFC | #4269 | |
| 700 |  | Marcio Barbosa | 2-0-0 UFC | #476 | |