Poids Lourds Hommes
 | Jhonata Diniz | 3-2-0 UFC | #1402 |  |
 | Jim Mullen | 0-1-0 UFC | #7200 |  |
 | Jimmy Lawson | 0-1-0 REC | #5770 | |
 | Joe Charles | 2-2-0 UFC | #3824 | |
 | Joe Pardo | 0-1-0 UFC | #6037 | |
 | Joe Son | 0-1-0 UFC | #4940 | |
 | Joffie Houlton | 3-2-0 REC | #1962 |  |
 | John Campetella | 0-1-0 UFC | #5434 | |
 | John Lopez | 0-1-0 REC | #5067 | |
 | John Marsh | 0-1-0 UFC | #5076 | |
 | John Matua | 0-1-0 UFC | #4800 | |
 | John Winter | 0-1-0 REC | #7315 |  |
 | John-Olav Einemo | 0-2-0 UFC | #3950 |  |
 | Johnny Rhodes | 2-1-0 UFC | #3967 | |
 | Jon Cunningham | 0-1-0 REC | #7232 | |
 | Jon Hess | 1-0-0 UFC | #5273 | |
 | Jon Jones | 22-1-0, 1NC UFC | #7 | |
 | Jon Madsen | 4-1-0 UFC | #2874 | |
 | Jonathan Wiezorek | 1-0-0 UFC | #6141 | |
 | Jordan Heiderman | 1-2-0 REC | #5084 | |