Tous les combattants
 | Josiel Silva | 4-0-0, 1NC REC | #433 |  |
 | Jostin Quilca | 0-1-0 REC | #5539 |  |
 | Josua Hernandez | 0-1-0 REC | #6876 |  |
 | Jota Ninomiya | 0-1-0 REC | #7422 |  |
 | Journey Newson | 1-4-0, 1NC UFC | #3311 | |
 | Jovan Leka | 1-0-0 REC | #2264 |  |
 | Jovan Zeljkovic | 0-1-0 REC | #5773 | |
 | Jovana Dukic | 0-1-0 REC | #6725 | |
 | Jovidon Khojaev | 0-1-0 REC | #6327 |  |
 | Joy Pendell | 2-1-0 REC | #2737 | |
 | Jozef Jaloviar | 0-1-0 REC | #7489 |  |
 | Jozef Wittner | 1-3-0 REC | #3444 | |
 | Jozette Cotton | 0-1-0 REC | #6579 | |
 | JP Buys | 0-4-0 UFC | #3246 |  |
 | JR Coughran | 0-1-0 REC | #7187 | |
 | Juan Adams | 1-3-0 UFC | #3571 | |
 | Juan Archuleta | 2-2-0 REC | #4558 | |
 | Juan Cabrera | #7798 |  | |
 | Juan Diaz | 1-0-0 UFC | #622 |  |
 | Juan Espino | 2-1-0 UFC | #3322 |  |
 | Juan Manuel Puig | 0-2-0 UFC | #4621 |  |
 | Juan Manuel Suarez | 0-2-0 REC | #5249 | |
 | Juan Pablo Vieira | 3-0-0 REC | #2427 | |
 | Juan Puerta | 1-0-0 REC | #7100 | |
 | Juan Sarrios | 0-1-0 REC | #7631 |  |