Poids Coqs Hommes
 | Jose Torres | 1-1-0 UFC | #2756 |  |
 | Jose Zarauz | 0-2-0 REC | #4477 |  |
 | Joseph Magro | 1-0-0 REC | #2967 |  |
 | Joseph Sandoval | 0-2-0 UFC | #5909 | |
 | Joseph Yohan | 0-1-0 REC | #5937 |  |
 | Josh Hill | 1-3-0 REC | #4271 |  |
 | Josh Rettinghouse | #7888 | | |
 | Joshua Cervantes | 0-1-0 REC | #5828 | |
 | Joshua Simpson | 1-0-0 REC | #4099 | |
 | Josias Musasa | 0-2-0 UFC | #2570 |  |
 | Josiel Silva | 4-0-0, 1NC REC | #595 | |
 | Journey Newson | 1-4-0, 1NC UFC | #3336 | |
 | JP Buys | 0-4-0 UFC | #3248 |  |
 | Juan Archuleta | 2-2-0 REC | #4618 | |
 | Juan Diaz | 1-0-0 UFC | #791 | |
 | Julian Orozco | #7997 | | |
 | Julien Pierre Lopez | 2-3-0 REC | #2693 | |
 | Julio Larrave | 1-0-0 REC | #3650 | |
 | Jumabieke Tuerxun | 0-3-0 UFC | #3776 |  |
 | Juntarou Ushiku | 0-1-0 REC | #7524 |  |