Poids Mi-Moyens Hommes
 | Joel Alvarez | 8-4-0 UFC | #229 |  |
 | John Hathaway | 7-2-0 UFC | #1467 |  |
 | John Howard | 7-7-0 UFC | #1069 |  |
 | John Maguire | 2-3-0 UFC | #3726 | |
 | Jon Koppenhaver | 1-1-0 UFC | #3393 | |
 | Jon Manley | 0-1-0 UFC | #6839 | |
 | Jon Tuck | 4-5-0 UFC | #2558 |  |
 | Jonathan Goulet | 4-5-0 UFC | #2576 |  |
 | Jonathan Meunier | 1-1-0 UFC | #3459 | |
 | Jonathan Micallef | 3-0-0 UFC | #729 |  |
 | Jonavin Webb | 0-2-0 UFC | #5422 | |
 | Jonny Parsons | 1-0-0 UFC | #4137 | |
 | Jordan Mein | 5-4-0 UFC | #2210 | |
 | Jordan Radev | 0-2-0 UFC | #5194 |  |
 | Jorge Lopez | 0-2-0 UFC | #4671 | |
 | Jorge Masvidal | 12-10-0 UFC | #328 | |
 | Jorge Santiago | 1-5-0 UFC | #3566 |  |
 | Jose Henrique | 1-0-0 UFC | #1606 | |
 | Josh Burkman | 6-12-0, 1NC UFC | #1840 | |
 | Josh Koscheck | 15-10-0 UFC | #316 | |