Poids Plumes Hommes
 | Kamal Mamedov | 0-3-0 REC | #3189 |  |
 | Kangjie Zhu | #2377 |  | |
 | Karol Kutyla | 0-5-0 REC | #3131 |  |
 | Karol Rysavy | 8-7-0 REC | #524 |  |
 | Kazuki Aimoto | #7612 |  | |
 | Kazumasa Majima | 2-1-0 REC | #364 | |
 | Keegan Witbeck | 0-1-0 REC | #7238 |  |
 | Keiichiro Nakamura | 3-0-0 REC | #724 | |
 | Keisuke Sasu | 1-3-0 REC | #3419 | |
 | Keith Keogh | 3-0-0 REC | #588 |  |
 | Kenny Florian | 12-5-0 UFC | #471 | |
 | Keremuaili Maimaitituoheti | 0-1-0 REC | #6692 | |
 | Kevin Aguilar | 2-4-0 UFC | #2854 | |
 | Kevin Boehm | 0-2-0 REC | #5788 | |
 | Kevin Croom | 0-3-0, 1NC UFC | #4511 | |
 | Kevin Judes | 1-0-0 REC | #7613 |  |
 | Kevin Petshi | 0-1-0 REC | #5457 | |
 | Kevin Rosas | #7575 | | |
 | Kevin Vallejos | 4-0-0 UFC | #139 |  |
 | Keweny Lopes | 3-3-0 REC | #2661 |  |