Poids Plumes Hommes
 | Kangjie Zhu | #2363 |  | |
 | Karol Kutyla | 0-5-0 REC | #3114 |  |
 | Karol Rysavy | 8-7-0 REC | #510 |  |
 | Kazuki Aimoto | #7586 |  | |
 | Kazumasa Majima | 2-1-0 REC | #327 | |
 | Keegan Witbeck | 0-1-0 REC | #7250 |  |
 | Keiichiro Nakamura | 3-0-0 REC | #686 | |
 | Keisuke Sasu | 1-3-0 REC | #3424 | |
 | Keith Keogh | 3-0-0 REC | #542 |  |
 | Kenny Florian | 12-5-0 UFC | #472 | |
 | Keremuaili Maimaitituoheti | 0-1-0 REC | #6664 | |
 | Kevin Aguilar | 2-4-0 UFC | #2841 | |
 | Kevin Boehm | 0-2-0 REC | #5773 | |
 | Kevin Croom | 0-3-0, 1NC UFC | #4541 | |
 | Kevin Judes | #7714 |  | |
 | Kevin Petshi | 0-1-0 REC | #5462 | |
 | Kevin Rosas | #7557 | | |
 | Kevin Vallejos | 4-0-0 UFC | #132 |  |
 | Keweny Lopes | 2-3-0 REC | #2993 |  |
 | Khakimzhan Davronov | 0-1-0 REC | #6383 |  |