Poids Mi-Moyens Hommes
 | Josh Neer | 6-9-0 UFC | #1891 |  |
 | Josh Quinlan | 1-3-0 UFC | #3472 | |
 | Josh Rafferty | 0-1-0 UFC | #5851 | |
 | Josh Stuart | 0-1-0 UFC | #5842 | |
 | Josiah Harrell | 0-1-0 UFC | #1696 | |
 | Junie Browning | 1-1-0 UFC | #4353 | |
 | Justin Edwards | 2-5-0 UFC | #3371 | |
 | Jutaro Nakao | 1-1-0 UFC | #4923 |  |
 | K.J. Noons | 2-3-0, 1NC UFC | #3504 | |
 | Kamaru Usman | 16-4-0 UFC | #27 |  |
 | Karo Parisyan | 8-4-0, 1NC UFC | #1216 | |
 | Kazushi Sakuraba | 1-0-0, 1NC UFC | #3919 | |
 | Keita Nakamura | 4-7-0 UFC | #2363 | |
 | Keith Wisniewski | 0-4-0 UFC | #4101 | |
 | Kenan Song | 6-5-0 UFC | #1522 |  |
 | Kenny Robertson | 4-5-0 UFC | #2561 | |
 | Kevin Burns | 2-3-0 UFC | #3525 | |
 | Kevin Holland | 16-12-0, 1NC UFC | #140 | |
 | Kevin Jousset | 2-2-0 UFC | #1552 |  |
 | Khaos Williams | 7-4-0 UFC | #518 | |