Poids Légers Hommes
 | Joao Zeferino | 0-2-0 UFC | #2682 |  |
 | Joaquim Silva | 7-5-0 UFC | #912 | |
 | Joe Brammer | 0-2-0 UFC | #5090 |  |
 | Joe Duffy | 4-4-0 UFC | #2267 |  |
 | Joe Ellenberger | 1-1-0 UFC | #5866 | |
 | Joe Giannetti | 0-1-0 UFC | #2946 | |
 | Joe Lauzon | 15-12-0 UFC | #351 | |
 | Joe Proctor | 4-4-0 UFC | #2549 | |
 | Joe Solecki | 5-4-0 UFC | #1665 | |
 | Joe Stevenson | 8-8-0 UFC | #1270 | |
 | Joe Veres | 0-2-0 UFC | #4489 | |
 | Joey Gilbert | 0-1-0 UFC | #6274 | |
 | John Alessio | 0-5-0 UFC | #3131 |  |
 | John Cholish | 1-2-0 UFC | #4544 | |
 | John Gunther | 1-1-0 UFC | #4473 | |
 | John Halverson | 0-2-0 UFC | #4953 | |
 | John Kolosci | 0-1-0 UFC | #6570 | |
 | John Lewis | 1-1-0 UFC | #5082 | |
 | John Makdessi | 11-9-0 UFC | #741 | |
 | John Polakowski | 0-1-0 UFC | #6336 | |