Poids Plumes Hommes
 | Jaylon McDaniel | 0-1-0 REC | #7410 |  |
 | Jean Silva | 7-1-0 UFC | #46 |  |
 | Jean-Jacques Lubaya | 0-2-0 REC | #4197 |  |
 | Jeferson dos Santos | 0-1-0 REC | #6546 | |
 | Jefferson Pontes | 0-1-0 REC | #7686 | |
 | Jeka Saragih | 1-3-0 UFC | #2498 |  |
 | Jelle Zeegers | 0-1-0 REC | #6890 |  |
 | Jeong Yeong Lee | 2-2-0 UFC | #1705 |  |
 | Jeremy Alba | 1-0-0 REC | #6724 | |
 | Jeremy Henry | 0-2-0 REC | #4822 | |
 | Jeremy Kennedy | 3-1-0 UFC | #1524 |  |
 | Jeremy Larsen | 0-3-0 UFC | #5086 | |
 | Jerry Kvarnstrom | 0-1-0 REC | #7821 |  |
 | Jesse Stirn | 1-3-0 REC | #5280 | |
 | Jessie Rosas | 0-1-0 UFC | #3282 |  |
 | Jesus Pinedo | 1-1-0 UFC | #462 |  |
 | Jhonatan Cordeiro | 0-1-0 REC | #6427 | |
 | Jianping Yang | 0-1-0 UFC | #5919 |  |
 | Jim Alers | 1-2-0, 1NC UFC | #4097 | |
 | Jim Hettes | 3-3-0 UFC | #3518 | |