Poids Coqs Hommes
 | Joao Lucas Oliveira | 1-1-0 REC | #5579 |  |
 | Joao Menezes | 0-1-0 REC | #5768 | |
 | Joe Soto | 3-5-0 UFC | #2430 |  |
 | Joey Gomez | 0-2-0 UFC | #4934 | |
 | John Beckett | 2-0-0 REC | #5056 | |
 | John Castaneda | 4-4-1 UFC | #1408 | |
 | John Dodson | 10-7-0 UFC | #517 | |
 | John Lineker | 12-4-0 UFC | #484 | |
 | John MaCalolooy | 0-1-0 REC | #6845 | |
 | John Sweeney | 1-1-0 REC | #4523 | |
 | Johnny Bedford | 2-3-0, 1NC UFC | #3199 | |
 | Johnny Campbell | 0-1-0 REC | #6942 | |
 | Johnny Eduardo | 3-5-0 UFC | #2798 | |
 | Johnny Gill | 1-1-0 REC | #6213 | |
 | Johnny Munoz Jr | 2-4-0 UFC | #3225 | |
 | Johnny Robles | 1-0-0 REC | #3241 | |
 | Joji Goto | 3-1-0 REC | #977 |  |
 | Jon Saragih | 0-1-0 REC | #6817 |  |
 | Jonas Magard | 7-2-0 REC | #912 |  |
 | Jonathan Brookins | 2-3-0 UFC | #2919 | |