Sorted alphabetically by last name · 2715 fighters
| Name | Nickname | |
|---|---|---|
| JV | Joshua Van | "The Fearless" |
| JW | Joshua Weems | "Wide Open" |
| JH | Josiah Harrell | "The Muscle Hamster" |
| JN | Josiane Nunes | "Josi" |
| JM | Josias Musasa | "The KO Wizard" |
| JN | Journey Newson | |
| JL | Jovan Leka | |
| JA | Juan Adams | "The Kraken" |
| JD | Juan Diaz | "Pegajoso" |
| JE | Juan Espino | "El Guapo" |