Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| MH | Max Holloway | "Blessed" |
| MR | Max Rohskopf | "Rated R" |
| MG | Maxim Grishin | "Maximus" |
| MB | Maximo Blanco | "Maxi" |
| MB | Maycee Barber | "The Future" |
| MB | Mayra Bueno Silva | "Sheetara" |
| MA | Megan Anderson | |
| MB |
| Mehdi Baghdad |
| "The Sultan" |
| MO | Mehemmedeli Osmanli | "Ineffable" |
| MF | Melinda Fabian |