Poids Légers Hommes
 | Jacobi Jones | 2-3-0 REC | #2753 |  |
 | Jae Hyun Park | 1-2-0 REC | #2798 |  |
 | Jai Herbert | 4-5-1 UFC | #670 |  |
 | Jairo Pacheco | 0-2-0 REC | #6144 |  |
 | Jake Bower | 0-1-0 REC | #6964 | |
 | Jake Hixenbaugh | 0-2-0 REC | #4701 | |
 | Jake Lindsey | 0-3-0 UFC | #4839 | |
 | Jakub Bahnik | 5-1-0, 1NC REC | #3019 |  |
 | Jakub Dohnal | 4-5-0 REC | #2438 | |
 | Jakub Kaczmarski | 0-2-0 REC | #6912 |  |
 | Jakub Kaszuba | 8-0-0 REC | #760 | |
 | Jakub Zacpal | 0-1-0 REC | #7165 | |
 | Jalin Turner | 9-6-0 UFC | #122 | |
 | James Deitz | 0-1-0 REC | #7333 | |
 | James Gonzalez | 2-3-0 REC | #4177 | |
 | James Lynch | 1-1-0 REC | #6785 | |
 | James Moontasri | 2-4-0 UFC | #3471 | |
 | James Pleasant | 0-1-0 REC | #7547 | |
 | James Power | 5-1-0 REC | #2086 | |
 | Jamie Mullarkey | 6-7-0 UFC | #985 |  |