Poids Lourds Hommes
 | Jordan Johnson | 4-0-0 UFC | #2132 |  |
 | Jose Augusto | 4-3-0 REC | #2256 |  |
 | Jose Luiz | #4163 | | |
 | Josh Appelt | 0-1-0 REC | #7296 | |
 | Josh Barnett | 7-3-0 UFC | #1148 | |
 | Josh Carrick | 1-0-0 REC | #764 |  |
 | Josh Copeland | 0-2-0 UFC | #3343 | |
 | Josh Hendricks | 0-1-0 UFC | #6054 | |
 | Josh Hokit | 4-0-0 UFC | #36 | |
 | Josh Parisian | 2-5-0 UFC | #1845 | |
 | Jovan Leka | 1-0-0 REC | #2275 |  |
 | Juan Adams | 1-3-0 UFC | #3560 | |
 | Juan Espino | 2-1-0 UFC | #3311 |  |
 | Julian Sanchez | 0-1-0 UFC | #5762 | |
 | Julio Paulino | 0-2-0 UFC | #4589 | |
 | Junior Albini | 1-4-0 UFC | #3493 | |
 | Junior Dos santos | 15-8-0 UFC | #155 | |
 | Justin Clarke | 3-1-0 REC | #793 |  |
 | Justin Eilers | 1-3-0 UFC | #3581 | |
 | Justin Frazier | 0-1-0 UFC | #4561 | |