Poids Mi-Moyens Hommes
 | Jivko Stoimenov | 0-1-0 REC | #7455 |  |
 | Jixie Molapo | 1-1-0 REC | #2957 |  |
 | Joaquin Buckley | 11-6-0 UFC | #145 |  |
 | Joaquin Garcia | 0-1-0 REC | #7483 | |
 | Joe Jordan | 0-1-0 UFC | #6692 | |
 | Joe Merritt | 0-1-0 UFC | #5841 | |
 | Joe Middleton | 3-1-0 REC | #1354 |  |
 | Joel Alvarez | 8-4-0 UFC | #249 |  |
 | Joel dos Santos | 0-2-0 REC | #5396 |  |
 | Joel Salviano | 0-1-0 REC | #5685 | |
 | Joey Davis | 0-1-0 REC | #6962 | |
 | Joey Hart | 4-3-0 REC | #968 | |
 | Johan Rodriguez | 1-1-0 REC | #5827 |  |
 | John Adajar | 0-1-0 REC | #6012 |  |
 | John Caldone | 1-0-0 REC | #7163 | |
 | John Caseneuil | 1-2-0 REC | #3929 |  |
 | John Hathaway | 7-2-0 UFC | #1470 | |
 | John Howard | 7-7-0 UFC | #1071 | |
 | John Maguire | 2-3-0 UFC | #3739 | |
 | John Palaiologos | 1-4-0 REC | #4066 |  |