Sorted alphabetically by last name · 2715 fighters
| Name | Nickname | |
|---|---|---|
| JM | Jeff Monson | "The Snowman" |
| JN | Jeff Newton | |
| JN | Jefferson Nascimento | "Toddynho" |
| JC | Jeisla Chaves | "A Braba" |
| JS | Jeka Saragih | |
| JL | Jenel Lausa | |
| JM | Jennifer Maia | |
| JP | Jens Pulver | "Little Evil" |
| JL | JeongYeong Lee | "Korean Tiger" |
| JW | Jeremiah Wells |