Poids Coqs Hommes
 | Jay Perrin | 0-3-0 UFC | #3162 |  |
 | Jaylon Bates | 2-1-0 REC | #5037 | |
 | Jean Matsumoto | 3-2-0 UFC | #917 |  |
 | Jeff Curran | 0-3-0 UFC | #4128 | |
 | Jeff Hougland | 1-2-0 UFC | #4065 | |
 | Jens Pulver | 6-2-1 UFC | #607 | |
 | Jeovanny de Oliveira | 0-1-0 REC | #6024 | |
 | Jeremy Strobel Jr. | 1-0-0 REC | #4208 | |
 | Jerrell Hodge | 0-1-0 REC | #6170 | |
 | Jerrod Sanders | 1-2-0, 1NC UFC | #4256 | |
 | Jesse Butler | 0-2-0 UFC | #4476 | |
 | Jesse Strader | 0-2-0 UFC | #5258 | |
 | Jessen Ramcharan | 0-1-0 REC | #7185 | |
 | Jhon Rodriguez Tacha | 0-1-0 REC | #5592 |  |
 | Ji Yong Yang | 1-1-0 REC | #2405 |  |
 | Jimmie Rivera | 7-4-0 UFC | #1437 | |
 | Jimmy Meza | 0-1-0 REC | #7183 | |
 | Jimmy Quinn | 3-2-0 REC | #3473 |  |
 | Jin Soo Son | 0-2-0 UFC | #4264 | |
 | Jinnosuke Kashimura | 2-2-0 REC | #369 |  |