Tous les combattants
 | Julius Anglickas | 1-2-0 REC | #4572 |  |
 | Julius Vega | 1-0-0 REC | #6560 |  |
 | Julius Walker | 1-2-0 UFC | #1489 | |
 | Jumabieke Tuerxun | 0-3-0 UFC | #3530 |  |
 | Jun Yong Park | 9-4-0 UFC | #567 |  |
 | Jun Young Hong | 0-2-0 REC | #3358 | |
 | Jung Hyun Lee | 1-2-0 REC | #1003 | |
 | Junie Browning | 1-1-0 UFC | #4154 | |
 | Junior Albini | 1-4-0 UFC | #3347 |  |
 | Junior Assis | 0-1-0 REC | #6967 | |
 | Junior Assuncao | 2-3-0 UFC | #3667 | |
 | Junior Dos santos | 15-8-0 UFC | #155 | |
 | Junior Duarte | 0-1-0 REC | #7310 | |
 | Junior Hernandez | 2-0-1 REC | #1781 |  |
 | Junior Melo | 0-1-0 REC | #6211 | |
 | Junior Orgulho | 0-1-0 REC | #6843 | |
 | Junior Tafa | 3-5-0 UFC | #215 |  |
 | Juntarou Ushiku | 0-1-0 REC | #7205 |  |
 | Junya Hibino | 0-1-0 REC | #7013 | |
 | Jurabek Malaev | #7472 |  | |
 | Juri Ohara | #7480 | | |
 | Juscelino Pantoja | 0-1-0 REC | #6039 | |
 | Jussier da Silva | 9-7-0 UFC | #1012 | |
 | Justice Torres | 0-1-0 REC | #5018 | |
 | Justin Barry | 0-1-0 REC | #6573 | |