| Fighter | Record | Last Bout |
|---|---|---|
| Melton Bowen | 0-1-0 | 1994-12-16 |
| Melvin Guillard | 32-18-2 (3 NC) | 2014-03-08 |
| 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 Bisping | 30-9-0 | 2017-11-25 |
| Michael Chandler | 23-11-0 | 2026-06-14 |
| Michael Chiesa | 20-7-0 | 2026-03-28 |
| Michael Graves | 6-0-1 | 2016-07-30 |
| Michael Johnson | 25-20-0 | 2026-03-07 |
| Michael Kuiper | 15-5-0 | 2013-10-26 |
| Michael McBride | 8-3-0 | 2017-04-22 |
| Michael McDonald | 17-4-0 | 2016-07-13 |
| Michael Morales | 19-0-0 | 2025-11-15 |
| Michael Oliveira | 10-0-0 | 2026-08-01 |
| Michael Page | 26-3-0 | 2026-09-05 |
| Michael Patt | 12-4-0 | 2009-03-07 |
| Michael Trizano | 11-3-0 | 2022-11-12 |
| Michal Figlak | 8-2-0 | 2024-04-27 |
| Michal Oleksiejczuk | 22-10-0 (1 NC) | 2026-06-27 |
| Micheal Gillmore | 6-5-0 | 2022-02-26 |
| Michel Batista | 4-1-0 (1 NC) | 2018-11-30 |
| Michel Pereira | 32-15-0 (2 NC) | 2026-06-27 |
| Michel Prazeres | 26-4-0 | 2021-06-26 |
| Michel Quinones | 8-3-0 | 2017-11-11 |
| Michelle Montague | 8-0-0 | 2026-04-25 |
| Michelle Waterson-Gomez | 18-13-0 | 2024-06-29 |
| Michihiro Omigawa | 17-14-1 | 2012-08-04 |
| Michinori Tanaka | 11-3-0 | 2017-02-04 |
| Mick Parkin | 10-1-0 | 2026-10-03 |
| Mickael Lebout | 16-7-1 (1 NC) | 2015-10-24 |
| Mickey Gall | 7-7-0 | 2024-11-16 |
| Miesha Tate | 20-10-0 | 2025-05-03 |
| Miguel Baeza | 10-4-0 | 2024-06-08 |
| Miguel Torres | 44-9-0 | 2012-04-21 |
| Mike Breeden | 11-6-0 | 2023-10-21 |
| Mike Brown | 26-9-0 | 2013-08-17 |
| Mike Ciesnolevicz | 19-4-0 (1 NC) | 2009-06-20 |
| Mike Davis | 12-4-0 | 2026-07-25 |
| Mike Easton | 13-6-0 | 2014-06-14 |
| Mike Grundy | 12-4-0 | 2022-03-19 |
| Mike Guymon | 15-6-1 | 2011-01-22 |
| Mike Jackson | 1-2-0 (1 NC) | 2022-10-15 |
| Mike King | 5-1-0 | 2014-07-19 |
| Mike Kyle | 22-14-1 (2 NC) | 2005-02-05 |
| Mike Lullo | 8-3-0 | 2011-09-17 |
| Mike Malott | 14-2-1 | 2026-10-17 |
| Mike Massenzio | 13-9-0 | 2012-05-05 |
| Mike Nickels | 9-5-0 | 2007-07-07 |
| Mike Perry | 14-8-0 | 2021-04-10 |