Poids Mi-Moyens Hommes
 | Jon Koppenhaver | 1-1-0 UFC | #3287 |  |
 | Jon Manley | 0-1-0 UFC | #6672 | |
 | Jon Tabarez | 0-1-0 REC | #6090 | |
 | Jon Tuck | 4-5-0 UFC | #2454 |  |
 | Jonas Flok | 0-1-0 REC | #7236 | |
 | Jonathan Di Lorenzo | 1-0-0 REC | #1839 | |
 | Jonathan Goulet | 4-5-0 UFC | #2510 |  |
 | Jonathan Griffin | 0-1-0 REC | #7077 | |
 | Jonathan Hanes | 0-1-0 REC | #7421 | |
 | Jonathan Meunier | 1-1-0 UFC | #3390 | |
 | Jonathan Micallef | 3-0-0 UFC | #331 |  |
 | Jonathan Piersma | 2-2-0 REC | #291 | |
 | Jonavin Webb | 0-2-0 UFC | #5188 | |
 | Jonny Parsons | 1-0-0 UFC | #3914 | |
 | Jordan Mein | 5-4-0 UFC | #2371 | |
 | Jordan Radev | 0-2-0 UFC | #4985 |  |
 | Jordan Zebo | 9-1-0 REC | #328 |  |
 | Jorge Lecuanda | 1-0-0 REC | #6660 | |
 | Jorge Lopez | 0-2-0 UFC | #4627 | |
 | Jorge Masvidal | 12-10-0 UFC | #303 | |