| Fighter | Record | Last Bout |
|---|---|---|
| Mayra Bueno Silva | 10-7-1 (1 NC) | 2026-04-25 |
| Mehemmedeli Osmanli | 12-1-0 | 2026-09-26 |
| Melissa Amaya | 8-0-0 | 2026-09-26 |
| Melissa Croden | 8-3-0 | 2026-10-17 |
| Melissa Gatto | 9-3-2 | 2026-04-04 |
| Melissa Martinez | 8-2-0 | 2025-07-12 |
| Melissa Mullins | 7-3-0 | 2026-06-20 |
| Melquizael Costa | 26-8-0 | 2026-05-16 |
| Melsik Baghdasaryan | 8-4-0 | 2026-06-20 |
| Merab Dvalishvili | 21-5-0 | 2026-10-24 |
| Michael Aljarouj | 13-4-0 (2 NC) | 2026-09-05 |
| Michael Aswell Jr. | 11-5-0 | 2026-09-19 |
| Michael Chandler | 23-11-0 | 2026-06-14 |
| Michael Chiesa | 20-7-0 | 2026-03-28 |
| Michael Johnson | 25-20-0 | 2026-03-07 |
| Michael Morales | 19-0-0 | 2025-11-15 |
| Michael Oliveira | 10-0-0 | 2026-08-01 |
| Michael Page | 26-3-0 | 2026-09-05 |
| Michal Oleksiejczuk | 22-10-0 (1 NC) | 2026-06-27 |
| Michel Pereira | 32-15-0 (2 NC) | 2026-06-27 |
| Michelle Montague | 8-0-0 | 2026-04-25 |
| Mick Parkin | 10-1-0 | 2026-10-03 |
| Mickey Gall | 7-7-0 | 2024-11-16 |
| Miesha Tate | 20-10-0 | 2025-05-03 |
| Mike Davis | 12-4-0 | 2026-07-25 |
| Mike Malott | 14-2-1 | 2026-10-17 |
| Miles Johns | 16-5-0 (1 NC) | 2026-08-08 |
| Milos Janicic | 19-4-0 | 2026-08-01 |
| Miranda Maverick | 17-6-0 | 2025-06-14 |
| Mitch Ramirez | 8-4-0 | 2026-07-18 |
| Mitch Raposo | 11-3-0 | 2026-06-20 |
| Mizuki | 16-6-0 | 2025-10-25 |
| Modestas Bukauskas | 21-7-0 | 2026-09-05 |
| Mohammad Yahya | 12-6-0 | 2025-07-26 |
| Mohammed Usman | 12-4-0 | 2025-06-21 |
| Molly McCann | 14-8-0 | 2025-03-22 |
| Montel Jackson | 15-4-0 | 2026-09-26 |
| Montse Rendon | 7-2-0 | 2026-03-14 |
| Montserrat Conejo Ruiz | 10-5-0 | 2025-11-01 |
| Morgan Charriere | 21-13-1 | 2026-09-05 |
| Movsar Evloev | 20-0-0 | 2026-10-24 |
| Muhammad Naimov | 13-5-0 | 2026-09-05 |
| Muhammad Saidov | 10-0-0 | 2026-07-25 |
| Muin Gafurov | 20-7-0 | 2026-02-07 |
| Murtazali Magomedov | 11-0-0 | 2026-06-20 |
| Muslim Salikhov | 22-6-0 | 2026-09-12 |
| Myktybek Orolbai | 16-3-1 | 2026-08-15 |
| Neil Magny | 32-15-0 | 2026-08-15 |
| Nikolas Motta | 15-6-0 (1 NC) | 2025-06-21 |
| Nina Milosevic | 9-1-0 | 2026-08-01 |