Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| ME | Mark Eddiva | |
| MG | Mark Godbeer | "The Hand Of" |
| MH | Mark Hall | |
| MH | Mark Holst | "Boots" |
| MH | Mark Hominick | "The Machine" |
| MH | Mark Hughes | |
| MH | Mark Hunt | "Super Samoan" |
| MK | Mark Kerr |
| "The Smashing Machine" |
| MM | Mark Madsen | "The Olympian" |
| MM | Mark Munoz | "The Filipino Wrecking Machine" |