Poids Coqs Hommes
 | John Dodson | 10-7-0 UFC | #560 |  |
 | John Garza | 0-1-0 UFC | #3554 | |
 | John Lineker | 12-4-0 UFC | #529 |  |
 | John Yannis | 1-2-0 UFC | #1226 | |
 | Johnny Bedford | 2-3-0, 1NC UFC | #3460 | |
 | Johnny Eduardo | 3-5-0 UFC | #3009 | |
 | Johnny Munoz Jr | 2-4-0 UFC | #3336 | |
 | Jonathan Brookins | 2-3-0 UFC | #3049 | |
 | Jonathan Martinez | 10-5-0 UFC | #728 | |
 | Jose Alberto Quinonez | 5-4-0 UFC | #2342 |  |
 | Jose Aldo | 14-9-0 UFC | #77 | |
 | Jose Johnson | 1-3-0 UFC | #2796 | |
 | Jose Torres | 1-1-0 UFC | #2830 | |
 | Joseph Sandoval | 0-2-0 UFC | #6000 | |
 | Josias Musasa | 0-2-0 UFC | #2663 |  |
 | Journey Newson | 1-4-0, 1NC UFC | #3413 | |
 | JP Buys | 0-4-0 UFC | #3316 |  |
 | Juan Diaz | 1-0-0 UFC | #1005 |  |
 | Jumabieke Tuerxun | 0-3-0 UFC | #3814 |  |
 | Kai Asakura | 2-2-0 UFC | #166 |  |