Tous les combattants
 | Kouya Kanda | 1-1-0 REC | #6031 |  |
 | Kovacs Zsombor | 0-1-0 REC | #7595 |  |
 | Koyomi Matsushima | 1-1-0 REC | #5922 | |
 | Kris McCray | 0-3-0 UFC | #4062 |  |
 | Kris Moutinho | 0-4-0 UFC | #1963 | |
 | Kris Rotharmel | 0-1-0 UFC | #7146 | |
 | Krissa Timbs | #7512 | | |
 | Kristians Boguzs | 1-0-0 REC | #1080 |  |
 | Kristina Williams | 4-1-0 REC | #3030 | |
 | Kristof Midoux | 0-1-0 UFC | #2807 |  |
 | Krisztian Simon | 0-1-0 REC | #7350 | |
 | Kron Gracie | 1-3-0 UFC | #2396 |  |
 | Krystian Bielski | 1-3-0 REC | #4917 |  |
 | Krystian Blezien | 1-2-0 REC | #3185 | |
 | Krystian Kaszubowski | 1-4-0 REC | #2908 | |
 | Krzysztof Geburek | 0-1-0 REC | #5386 | |
 | Krzysztof Glowacki | 1-1-0, 1NC REC | #4208 | |
 | Krzysztof Jotko | 11-6-0 UFC | #149 | |
 | Krzysztof Mendlewski | 0-1-0 REC | #5200 | |
 | Krzysztof Soszynski | 6-3-0 UFC | #2087 |  |
 | Kuat Khamitov | 1-0-0 REC | #2326 |  |
| Kun Marcell | 1-0-0 REC | #7545 | |
 | Kuniyoshi Hironaka | 1-3-0 UFC | #4026 | |
 | Kunle Lawal | 1-1-0 REC | #2267 |  |
 | Kurban Gadzhiev | 1-2-0 REC | #3515 |  |