Poids Mi-Moyens Hommes
 | Jon Koppenhaver | 1-1-0 UFC | #3227 |  |
 | Jon Manley | 0-1-0 UFC | #6688 | |
 | Jon Tabarez | 0-1-0 REC | #5937 | |
 | Jon Tuck | 4-5-0 UFC | #2414 |  |
 | Jonas Flok | 0-1-0 REC | #7196 | |
 | Jonathan Di Lorenzo | 1-0-0 REC | #1698 | |
 | Jonathan Goulet | 4-5-0 UFC | #2470 |  |
 | Jonathan Griffin | 0-1-0 REC | #7002 | |
 | Jonathan Hanes | 0-1-0 REC | #7393 | |
 | Jonathan Meunier | 1-1-0 UFC | #3361 | |
 | Jonathan Micallef | 3-0-0 UFC | #242 |  |
 | Jonathan Piersma | 1-2-0 REC | #1554 | |
 | Jonavin Webb | 0-2-0 UFC | #5118 | |
 | Jonny Parsons | 1-0-0 UFC | #3910 | |
 | Jordan Mein | 5-4-0 UFC | #2339 | |
 | Jordan Radev | 0-2-0 UFC | #4902 |  |
 | Jordan Zebo | 9-1-0 REC | #293 |  |
 | Jorge Lecuanda | 1-0-0 REC | #6557 | |
 | Jorge Lopez | 0-2-0 UFC | #4556 | |
 | Jorge Masvidal | 12-10-0 UFC | #307 | |