Poids Lourds Hommes
 | Jonathan Wiezorek | 1-0-0 UFC | #6337 |  |
 | Jordan Johnson | 4-0-0 UFC | #2155 | |
 | Jose Luiz | 1-0-0 UFC | #612 |  |
 | Josh Barnett | 7-3-0 UFC | #1142 | |
 | Josh Copeland | 0-2-0 UFC | #3465 | |
 | Josh Hendricks | 0-1-0 UFC | #6102 | |
 | Josh Hokit | 4-0-0 UFC | #75 | |
 | Josh Parisian | 2-5-0 UFC | #1880 | |
 | Jovan Leka | 1-0-0 UFC | #540 |  |
 | Juan Adams | 1-3-0 UFC | #3691 | |
 | Juan Espino | 2-1-0 UFC | #3376 |  |
 | Julian Sanchez | 0-1-0 UFC | #6049 | |
 | Julio Paulino | 0-2-0 UFC | #4777 | |
 | Junior Albini | 1-4-0 UFC | #3594 | |
 | Junior Dos santos | 15-8-0 UFC | #177 | |
 | Justin Eilers | 1-3-0 UFC | #3658 | |
 | Justin Frazier | 0-1-0 UFC | #4865 | |
 | Justin Martin | 1-0-0 UFC | #5638 | |
 | Justin McCully | 2-2-0 UFC | #4126 | |
 | Justin Tafa | 4-5-0, 1NC UFC | #1543 |  |