Poids Plumes Hommes
 | Jerry Kvarnstrom | 0-1-0 REC | #7393 |  |
 | Jesse Stirn | 1-3-0 REC | #4886 |  |
 | Jesus Pinedo | 1-1-0 UFC | #1070 |  |
 | Jhonatan Cordeiro | 0-1-0 REC | #5559 |  |
 | Jianping Yang | 0-1-0 UFC | #6322 |  |
 | Jim Alers | 1-2-0, 1NC UFC | #3789 | |
 | Jim Hettes | 3-3-0 UFC | #3241 | |
 | Jin Aoi | 0-1-0 REC | #5321 |  |
 | Jin Wakita | 0-1-0 REC | #5701 | |
 | Joan Rodriguez | 0-1-0 REC | #5217 |  |
 | Joanderson Brito | 6-3-0 UFC | #565 | |
 | Joao Pedro Moreira | 1-1-0 REC | #2774 | |
 | Joao Pedro Saldanha | 1-1-0 REC | #6516 | |
 | Joao Roque | 0-1-0 UFC | #4957 |  |
 | Joe Doyle | 0-2-0 REC | #3990 |  |
 | Joel Batobo | 0-1-0 REC | #6079 |  |
 | Joey Gambino | 0-2-0 UFC | #4943 | |
 | John Albert | 1-4-0 UFC | #3517 | |
 | John Cofer | 0-2-0 UFC | #5026 | |
 | John De Jesus | 2-2-0 REC | #4433 | |