Tous les combattants
 | Johnny Hopper | 0-1-0 REC | #6563 |  |
 | Johnny Munoz Jr | 2-4-0 UFC | #3247 | |
 | Johnny Rees | 0-2-0 UFC | #5726 | |
 | Johnny Rhodes | 2-1-0 UFC | #3987 | |
 | Johnny Robles | 1-0-0 REC | #3613 | |
 | Johnny Soto | 0-1-0 REC | #7686 | |
 | Johnny Walker | 8-7-0, 1NC UFC | #302 |  |
 | Johny Hendricks | 13-8-0 UFC | #299 | |
 | Joice Mara | #7302 | | |
 | Joilton Lutterbach | 0-3-0 REC | #4017 | |
 | Joji Goto | 3-1-0 REC | #1496 |  |
 | Jon Cunningham | 0-1-0 REC | #7284 | |
 | Jon delos Reyes | 1-3-0 UFC | #3812 |  |
 | Jon Fitch | 14-3-1 UFC | #237 | |
 | Jon Gover | 0-1-0 REC | #7680 | |
 | Jon Hess | 1-0-0 UFC | #5310 | |
 | Jon Jones | 22-1-0, 1NC UFC | #6 | |
 | Jon Koppenhaver | 1-1-0 UFC | #3356 | |
 | Jon Kunneman | #6799 | | |
 | Jon Madsen | 4-1-0 UFC | #2886 | |
 | Jon Manley | 0-1-0 UFC | #6728 | |
 | Jon Saragih | 0-1-0 REC | #6957 |  |
 | Jon Tabarez | 0-1-0 REC | #6294 | |
 | Jon Tuck | 4-5-0 UFC | #2552 | |
 | Jonas Bilharinho | 1-1-0 REC | #5455 | |