Poids Mi-Moyens Hommes
 | Jivko Stoimenov | 0-1-0 REC | #7475 |  |
 | Jixie Molapo | 1-1-0 REC | #3003 |  |
 | Joaquin Buckley | 11-6-0 UFC | #151 |  |
 | Joaquin Garcia | 0-1-0 REC | #7417 | |
 | Joe Jordan | 0-1-0 UFC | #6725 | |
 | Joe Merritt | 0-1-0 UFC | #5863 | |
 | Joe Middleton | 3-1-0 REC | #1400 |  |
 | Joel Alvarez | 8-4-0 UFC | #272 |  |
 | Joel dos Santos | 0-2-0 REC | #5419 |  |
 | Joel Salviano | 0-1-0 REC | #5715 | |
 | Joey Davis | 0-1-0 REC | #6984 | |
 | Joey Hart | 4-3-0 REC | #1010 | |
 | Johan Rodriguez | 1-1-0 REC | #5870 |  |
 | John Adajar | 0-1-0 REC | #6054 |  |
 | John Caldone | 1-0-0 REC | #7160 | |
 | John Caseneuil | 1-2-0 REC | #3954 |  |
 | John Hathaway | 7-2-0 UFC | #1472 | |
 | John Howard | 7-7-0 UFC | #1074 | |
 | John Maguire | 2-3-0 UFC | #3761 | |
 | John Palaiologos | 1-4-0 REC | #4089 |  |