Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| JH | John Halverson | "The Hurricane" |
| JH | John Hathaway | "The Hitman" |
| JH | John Howard | "Doomsday" |
| JK | John Kolosci | |
| JL | John Lewis | |
| JL | John Lineker | "Hands of Stone" |
| JL | John Lober | "The Machine" |
| JM |
| "The One" |
| JM | John Makdessi | "The Bull" |
| JM | John Marsh |