Poids Plumes Hommes
 | Kangjie Zhu | 0-1-0 UFC | #2289 |  |
 | Karol Kutyla | 0-5-0 REC | #3541 |  |
 | Karol Rysavy | 8-7-1 REC | #925 |  |
 | Karshyga Dautbek | 4-1-0, 1NC REC | #656 |  |
 | Kazakbai Tilenov | 0-1-0 REC | #6477 |  |
 | Kazuki Aimoto | #8031 |  | |
 | Kazumasa Majima | 2-2-0 REC | #1201 | |
 | Keegan Witbeck | 0-1-0 REC | #7772 |  |
 | Keiichiro Nakamura | 3-0-0 REC | #1535 | |
 | Keisuke Sasu | 1-4-0 REC | #3126 | |
 | Keith Keogh | 3-0-0 REC | #1511 |  |
 | Kenny Florian | 12-5-0 UFC | #497 | |
 | Keremuaili Maimaitituoheti | 0-1-0 REC | #7237 | |
 | Kestin McClain | 1-0-0 REC | #2131 | |
 | Kevin Aguilar | 2-4-0 UFC | #3124 | |
 | Kevin Boehm | 0-2-0 REC | #5855 | |
 | Kevin Croom | 0-3-0, 1NC UFC | #4542 | |
 | Kevin Judes | 1-0-0 REC | #7815 |  |
 | Kevin Petshi | 0-1-0 REC | #5593 | |
 | Kevin Rosas | #8010 | |