Tous les combattants
 | Julius Anglickas | 1-2-0 REC | #4829 |  |
 | Julius Vega | 1-0-0 REC | #6718 |  |
 | Julius Walker | 1-3-0 UFC | #1456 | |
 | Jumabieke Tuerxun | 0-3-0 UFC | #3755 |  |
 | Jun Yong Park | 9-4-0 UFC | #628 |  |
 | Jun Young Hong | 0-2-0 REC | #3312 | |
 | Jung Hyun Lee | 1-2-0 REC | #1632 | |
 | Junie Browning | 1-1-0 UFC | #4356 | |
 | Junior Albini | 1-4-0 UFC | #3510 |  |
 | Junior Assis | 0-1-0 REC | #7455 | |
 | Junior Assuncao | 2-3-0 UFC | #3880 | |
 | Junior Dos santos | 15-8-0 UFC | #162 | |
 | Junior Duarte | 0-1-0 REC | #7598 | |
 | Junior Hernandez | 2-0-1 REC | #2266 |  |
 | Junior Melo | 0-1-0 REC | #6273 | |
 | Junior Orgulho | 0-1-0 REC | #7466 | |
 | Junior Tafa | 3-6-0 UFC | #479 |  |
 | Juntarou Ushiku | 0-1-0 REC | #7527 |  |
 | Junya Hibino | 0-1-0 REC | #7501 | |
 | Jurabek Malaev | #7752 |  | |
 | Juri Ohara | #7797 | | |
 | Juscelino Pantoja | 0-1-0 REC | #6072 | |
 | Jussier da Silva | 9-7-0 UFC | #1049 | |
 | Justice Torres | 0-1-0 REC | #5158 | |
 | Justin Barry | 0-1-0 REC | #6114 | |