Poids Moyens Hommes
 | Joao Dantas | 0-1-0 REC | #4045 |  |
 | Joao Paulo Silva | 0-2-0 REC | #5826 | |
 | Joe Ambler | 0-2-0 REC | #6474 |  |
 | Joe Doerksen | 2-7-0 UFC | #2739 |  |
 | Joe Gigliotti | 0-2-0 UFC | #4080 |  |
 | Joe Pyfer | 6-1-0 UFC | #275 | |
 | Joe Riggs | 5-7-0 UFC | #1964 | |
 | Joel Kouadja | 1-1-0 REC | #2571 |  |
 | Joey Beltran | 3-6-0, 1NC UFC | #2535 | |
 | John Lober | 0-1-0 UFC | #3820 | |
 | John Moore | 0-1-0 REC | #5476 | |
 | John Phillips | 1-5-0 UFC | #2493 |  |
 | John Salter | 1-2-0 UFC | #3252 | |
 | Johnny Eblen | 6-1-0 REC | #1828 | |
 | Johnny Rees | 0-2-0 UFC | #5283 | |
 | Johny Hendricks | 13-8-0 UFC | #255 | |
 | Jon Fitch | 14-3-1 UFC | #207 | |
 | Jon Gover | 0-1-0 REC | #7183 | |
 | Jon Kunneman | #7141 | | |
 | Jonatan Westin | 0-2-0 REC | #6317 |  |