Poids Légers Hommes
 | Joao Zeferino | 0-2-0 UFC | #2673 |  |
 | Joaquim Silva | 7-5-0 UFC | #894 | |
 | Joe Brammer | 0-2-0 UFC | #5090 |  |
 | Joe Duffy | 4-4-0 UFC | #2248 |  |
 | Joe Ellenberger | 1-1-0 UFC | #5818 | |
 | Joe Giannetti | 0-1-0 UFC | #2987 | |
 | Joe Lauzon | 15-12-0 UFC | #337 | |
 | Joe Proctor | 4-4-0 UFC | #2541 | |
 | Joe Solecki | 5-4-0 UFC | #1653 | |
 | Joe Stevenson | 8-8-0 UFC | #1242 | |
 | Joe Veres | 0-2-0 UFC | #4525 | |
 | Joey Gilbert | 0-1-0 UFC | #6268 | |
 | John Alessio | 0-5-0 UFC | #3135 |  |
 | John Cholish | 1-2-0 UFC | #4541 | |
 | John Gunther | 1-1-0 UFC | #4502 | |
 | John Halverson | 0-2-0 UFC | #5010 | |
 | John Kolosci | 0-1-0 UFC | #6571 | |
 | John Lewis | 1-1-0 UFC | #5121 | |
 | John Makdessi | 11-9-0 UFC | #705 | |
 | John Polakowski | 0-1-0 UFC | #6311 | |