Poids Plumes Hommes
 | Junior Assuncao | 2-3-0 UFC | #3906 |  |
 | Junior Duarte | 0-1-0 REC | #7589 | |
 | Jurabek Malaev | #7768 |  | |
 | Justice Torres | 0-1-0 REC | #5137 |  |
 | Justin Gonzales | 3-4-0 REC | #3584 | |
 | Justin Lawrence | 1-2-0 UFC | #4393 | |
 | Justin Thompson | 0-1-0 REC | #7790 | |
 | Kaan Ofli | 3-2-0 UFC | #497 |  |
 | Kacper Wrobel | 0-1-0 REC | #5845 |  |
 | Kafiz Sakibekov | 1-4-0 REC | #1201 |  |
 | Kai Kamaka III | 2-3-1 UFC | #720 | |
 | Kai Lu | 1-2-0 REC | #4267 |  |
 | Kaisei Kuroi | 0-1-0 REC | #6876 |  |
 | Kaiwen Li | 4-3-0 REC | #361 | |
 | Kaleio Romero | 0-1-0 REC | #7293 | |
 | Kaleo Meheula | #7534 | | |
 | Kallum Parker | 1-4-0 REC | #4711 |  |
 | Kamal Mamedov | 0-3-0 REC | #3595 |  |
 | Kangjie Zhu | 0-1-0 UFC | #2228 | |
 | Karol Kutyla | 0-5-0 REC | #3477 | |