Sorted alphabetically by last name · 2711 fighters
| Name | Nickname | |
|---|---|---|
| MG | Maurice Greene | "The Crochet Boss" |
| MS | Maurice Smith | |
| MR | Mauricio Rua | "Shogun" |
| MR | Mauricio Ruffy | |
| MG | Max Gimenis | |
| MG | Max Griffin | "Pain" |
| MH | Max Holloway | "Blessed" |
| MR | Max Rohskopf | "Rated R" |
| MG | Maxim Grishin | "Maximus" |
| MB | Maximo Blanco | "Maxi" |