Tous les combattants
 | Junior Hernandez | 2-0-1 REC | #1478 |  |
 | Junior Melo | #7613 |  | |
 | Junior Orgulho | 0-1-0 REC | #6667 | |
 | Junior Tafa | 2-5-0 UFC | #1075 |  |
 | Juntarou Ushiku | 0-1-0 REC | #7051 |  |
 | Junya Hibino | 0-1-0 REC | #6737 | |
 | Jurabek Malaev | #7242 |  | |
 | Juri Ohara | #7274 | | |
 | Juscelino Pantoja | 0-1-0 REC | #6063 | |
 | Jussier da Silva | 9-7-0 UFC | #968 | |
 | Justice Torres | 0-1-0 REC | #4698 |  |
 | Justin Barry | 0-1-0 REC | #6518 | |
 | Justin Buchholz | 1-4-0 UFC | #3632 | |
 | Justin Burlinson | 3-1-0 REC | #2138 |  |
 | Justin Clarke | 2-1-0 REC | #1049 |  |
 | Justin Edwards | 2-5-0 UFC | #3074 | |
 | Justin Eilers | 1-3-0 UFC | #3303 | |
 | Justin Frazier | 0-1-0 UFC | #4299 | |
 | Justin Gaethje | 10-5-0 UFC | #21 | |
 | Justin Gonzales | 3-4-0 REC | #3117 | |
 | Justin James | 0-1-0 UFC | #6649 | |
 | Justin Jaynes | 1-4-0 UFC | #2673 | |
 | Justin Jones | 0-2-0 UFC | #4734 | |
 | Justin Lawrence | 1-2-0 UFC | #4170 | |
 | Justin Ledet | 3-4-0 UFC | #2934 | |