Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| MB | Mario Bautista | |
| MM | Mario Miranda | |
| MN | Mario Neto | "Sukata" |
| MP | Mario Pinto | |
| MR | Marion Reneau | "The Belizean Bruiser" |
| MA | Mariya Agapova | "Money Mashka" |
| MB | Mark Bocek | |
| MC | Mark Choinski |
| "The Shark" |
| MC | Mark Coleman | "The Hammer" |
| MD | Mark De La Rosa | "Bumblebee" |