Poids Coqs Hommes
 | John Yannis | 1-2-0 UFC | #804 |  |
 | Johnny Bedford | 2-3-0, 1NC UFC | #3318 | |
 | Johnny Eduardo | 3-5-0 UFC | #2960 |  |
 | Johnny Munoz Jr | 2-4-0 UFC | #3221 | |
 | Jonathan Brookins | 2-3-0 UFC | #2992 | |
 | Jonathan Martinez | 10-5-0 UFC | #681 | |
 | Jose Alberto Quinonez | 5-4-0 UFC | #2301 |  |
 | Jose Aldo | 14-9-0 UFC | #74 | |
 | Jose Johnson | 1-3-0 UFC | #2694 | |
 | Jose Torres | 1-1-0 UFC | #2702 | |
 | Joseph Sandoval | 0-2-0 UFC | #5737 | |
 | Josias Musasa | 0-2-0 UFC | #2520 |  |
 | Journey Newson | 1-4-0, 1NC UFC | #3285 | |
 | JP Buys | 0-4-0 UFC | #3212 |  |
 | Juan Diaz | 1-0-0 UFC | #512 |  |
 | Jumabieke Tuerxun | 0-3-0 UFC | #3732 |  |
 | Kai Asakura | 1-2-0 UFC | #260 |  |
 | Ken Stone | 2-2-0 UFC | #3627 | |
 | Kevin Natividad | 0-3-0 UFC | #3546 | |
 | Kleydson Rodrigues | 1-3-0 UFC | #3327 | |