Tous les combattants
 | Jarrah Al-Silawi | 4-5-0 REC | #1438 |  |
 | Jarred Brooks | 2-2-0 UFC | #3148 |  |
 | Jashell Ticha Awa | 0-2-0 REC | #3532 |  |
 | Jasmine Favero | 1-0-0 REC | #6636 |  |
 | Jasmine Jasudavicius | 9-3-0 UFC | #103 |  |
 | Jasmine Pouncy | 0-1-0 REC | #6827 | |
 | Jason Black | 0-2-0 UFC | #4232 | |
 | Jason Brilz | 3-4-0 UFC | #3093 | |
 | Jason Butcher | 0-2-0 REC | #5987 | |
 | Jason Danner | 1-0-0 REC | #3041 | |
 | Jason Day | 1-2-0 UFC | #4132 | |
 | Jason DeLucia | 2-2-0 UFC | #3283 | |
 | Jason Dent | 1-3-0 UFC | #3598 | |
 | Jason Eubanks | 1-0-0 REC | #864 |  |
 | Jason Fairn | 0-1-0 UFC | #6213 | |
 | Jason Gilliam | 0-2-0 UFC | #4474 | |
 | Jason Godsey | 0-2-0 UFC | #4359 | |
 | Jason Gonzalez | 1-3-0 UFC | #4204 | |
 | Jason High | 2-3-0 UFC | #2987 | |
 | Jason Jackson | 4-3-0 REC | #1608 |  |
 | Jason Knight | 4-5-0 UFC | #2242 | |
 | Jason Lambert | 4-4-0 UFC | #2667 | |
 | Jason MacDonald | 6-8-0 UFC | #1892 | |
 | Jason Miller | 0-3-0 UFC | #3456 | |
 | Jason Novelli | 0-2-0 UFC | #5580 | |