Tous les combattants
 | Jared Vanderaa | 1-6-0 UFC | #2756 |  |
 | Jarjis Danho | 1-1-1 UFC | #4573 |  |
 | Jarno Errens | 1-3-0 UFC | #2849 |  |
 | Jarome Woodbury | 1-0-0 REC | #3105 | |
 | Jaroslav Pokorny | 2-4-0 REC | #4325 |  |
 | Jarrah Al-Silawi | 4-5-0 REC | #1860 |  |
 | Jarred Brooks | 2-2-0 UFC | #3379 | |
 | Jarred Gonzales | #8100 | | |
 | Jarret Betancourt | #8182 | | |
 | Jashell Ticha Awa | 0-2-0 REC | #3890 |  |
 | Jasmine Favero | 1-0-0 REC | #6738 |  |
 | Jasmine Jasudavicius | 9-3-0 UFC | #141 |  |
 | Jasmine Pouncy | 0-1-0 REC | #7185 | |
 | Jason Black | 0-2-0 UFC | #4608 | |
 | Jason Brilz | 3-4-0 UFC | #3323 | |
 | Jason Butcher | 0-2-0 REC | #6444 | |
 | Jason Danner | 1-0-0 REC | #3401 | |
 | Jason Day | 1-2-0 UFC | #4293 | |
 | Jason DeLucia | 2-2-0 UFC | #3556 | |
 | Jason Dent | 1-3-0 UFC | #3836 | |
 | Jason Eubanks | 1-0-0 REC | #1686 |  |
 | Jason Fairn | 0-1-0 UFC | #6312 | |
 | Jason Gilliam | 0-2-0 UFC | #4743 | |
 | Jason Godsey | 0-2-0 UFC | #4466 | |
 | Jason Gonzalez | 1-3-0 UFC | #4467 | |