Tous les combattants
 | Junior Melo | 0-1-0 REC | #6135 |  |
 | Junior Orgulho | 0-1-0 REC | #7350 | |
 | Junior Tafa | 3-6-0 UFC | #426 |  |
 | Juntarou Ushiku | 0-1-0 REC | #7503 |  |
 | Junya Hibino | 0-1-0 REC | #7463 | |
 | Jurabek Malaev | #7706 |  | |
 | Juri Ohara | #7756 | | |
 | Juscelino Pantoja | 0-1-0 REC | #6147 | |
 | Jussier da Silva | 9-7-0 UFC | #1043 | |
 | Justice Torres | 0-1-0 REC | #5130 |  |
 | Justin Barry | 0-1-0 REC | #6335 | |
 | Justin Buchholz | 1-4-0 UFC | #3953 | |
 | Justin Burlinson | 3-1-0 REC | #2599 |  |
 | Justin Clarke | 3-1-0 REC | #857 |  |
 | Justin Detzel | 1-0-0 REC | #1128 |  |
 | Justin Edwards | 2-5-0 UFC | #3344 | |
 | Justin Eilers | 1-3-0 UFC | #3596 | |
 | Justin Frazier | 0-1-0 UFC | #4605 | |
 | Justin Gaethje | 11-5-0 UFC | #5 | |
 | Justin Gomez | 1-1-0 REC | #7664 |  |
 | Justin Gonzales | 3-4-0 REC | #3524 | |
 | Justin James | 0-1-0 UFC | #7018 | |
 | Justin Jaynes | 1-4-0 UFC | #3015 | |
 | Justin Jones | 0-2-0 UFC | #5156 | |
 | Justin Lawrence | 1-2-0 UFC | #4404 | |