Tous les combattants
 | Kazakbai Tilenov | 0-1-0 REC | #6443 |  |
 | Kazbek Damaev | 0-1-0 REC | #6684 |  |
 | Kazuhiro Nakamura | 0-2-0 UFC | #5032 |  |
 | Kazuki Aimoto | #7918 | | |
 | Kazuki Tokudome | 1-3-0 UFC | #4025 | |
 | Kazuma Maruyama | 0-1-0 REC | #6509 | |
 | Kazumasa Majima | 2-2-0 REC | #1025 | |
 | Kazuo Takahashi | 1-0-0 UFC | #5099 | |
 | Kazushi Sakuraba | 1-0-0, 1NC UFC | #3919 | |
 | KB Bhullar | 0-2-0 UFC | #5600 |  |
 | Keegan Witbeck | 0-1-0 REC | #7626 |  |
 | Kegan Agnew | 0-1-0 REC | #7315 | |
 | Kegan Gennrich | 3-2-0 REC | #1241 | |
 | Keigo Kunihara | 0-1-0 UFC | #7299 | |
 | Keiichiro Nakamura | 3-0-0 REC | #1364 | |
 | Keiichiro Yamamiya | 0-1-0 UFC | #7177 | |
 | Keir Harvie | 2-3-0 REC | #3615 |  |
 | Keisuke Sasu | 1-4-0 REC | #3088 | |
 | Keita Nakamura | 4-7-0 UFC | #2363 | |
 | Keith Berish | 0-1-0, 1NC UFC | #4816 | |
 | Keith Hackney | 2-2-0 UFC | #3006 | |
 | Keith Jardine | 6-7-0 UFC | #1704 | |
 | Keith Keogh | 3-0-0 REC | #1309 |  |
 | Keith Mielke | 0-1-0 UFC | #6766 | |
 | Keith Rockel | 1-1-0 UFC | #5471 | |