Poids Plumes Hommes
 | Joey Gambino | 0-2-0 UFC | #5091 |  |
 | John Albert | 1-4-0 UFC | #3647 | |
 | John Cofer | 0-2-0 UFC | #5350 | |
 | John De Jesus | 2-2-0 REC | #4661 | |
 | John Donaldson | 0-1-0 REC | #6430 | |
 | John Gunderson | 1-2-0 UFC | #4599 | |
 | John Teixeira da Conceicao | 0-1-0 UFC | #3456 |  |
 | Johnny Soto | 0-1-0 REC | #7608 | |
 | Jonas Bilharinho | 1-1-0 REC | #5366 | |
 | Jonatan Kujawa | 0-2-0 REC | #4690 |  |
 | Jonathan Caetano | 0-1-0 REC | #5326 | |
 | Jonathan Pearce | 5-4-0 UFC | #1632 | |
 | Jonathan Powell | #7900 | | |
 | Joo Sang Yoo | 1-1-0 UFC | #2485 |  |
 | Jora Ayvazyan | 3-0-0 REC | #1460 |  |
 | Jordan Barton | 1-1-0 REC | #5298 |  |
 | Jordan Bradshaw | 3-0-0 REC | #1193 |  |
 | Jordan Griffin | 1-4-0 UFC | #3361 | |
 | Jordan Leavitt | 6-4-0 UFC | #562 | |
 | Jordan Oliver | 3-0-0 REC | #2866 | |