Poids Moyens Hommes
 | Joao Dantas | 0-1-0 REC | #4574 |  |
 | Joao Paulo Silva | 0-2-0 REC | #5905 | |
 | Joe Ambler | 0-2-0 REC | #6758 |  |
 | Joe Doerksen | 2-7-0 UFC | #3015 |  |
 | Joe Gigliotti | 0-2-0 UFC | #4273 |  |
 | Joe Pyfer | 7-1-0 UFC | #106 | |
 | Joe Riggs | 5-7-0 UFC | #2142 | |
 | Joel Kouadja | 1-1-0 REC | #2974 |  |
 | Joey Beltran | 3-6-0, 1NC UFC | #2822 | |
 | John Lober | 0-1-0 UFC | #4039 | |
 | John Moore | 0-2-0 REC | #3939 | |
 | John Phillips | 1-5-0 UFC | #2669 |  |
 | John Salter | 1-2-0 UFC | #3555 | |
 | Johnny Eblen | 7-1-0 REC | #507 | |
 | Johnny Rees | 0-2-0 UFC | #5694 | |
 | Johny Hendricks | 13-8-0 UFC | #276 | |
 | Jon Fitch | 14-3-1 UFC | #221 | |
 | Jon Gover | 0-1-0 REC | #7572 | |
 | Jon Kunneman | #7165 | | |
 | Jonatan Westin | 0-2-0 REC | #6380 |  |