Tous les combattants
 | Krisztian Simon | 0-1-0 REC | #7574 |  |
 | Kron Gracie | 1-3-0 UFC | #2608 |  |
 | Krystian Bielski | 1-3-0 REC | #5033 |  |
 | Krystian Blezien | 1-2-0 REC | #3327 | |
 | Krystian Kaszubowski | 1-4-0 REC | #3151 | |
 | Krzysztof Geburek | 0-1-0 REC | #5547 | |
 | Krzysztof Glowacki | 1-1-0, 1NC REC | #4370 | |
 | Krzysztof Jotko | 11-6-0 UFC | #182 | |
 | Krzysztof Mendlewski | 0-1-0 REC | #5481 | |
 | Krzysztof Soszynski | 6-3-0 UFC | #2165 |  |
 | Kuat Khamitov | 1-0-0 REC | #2667 |  |
 | Kun Marcell | 1-0-0 REC | #7798 | |
 | Kuniyoshi Hironaka | 1-3-0 UFC | #4223 |  |
 | Kunle Lawal | 1-1-0 REC | #2658 |  |
 | Kurban Gadzhiev | 1-2-0 REC | #3790 |  |
 | Kurban Khatataev | 1-0-0 REC | #1901 | |
 | Kurban Taygibov | 2-1-0 REC | #1328 | |
 | Kurbanali Isabekov | 0-1-0 REC | #5806 | |
 | Kurt Holobaugh | 2-7-0 UFC | #2208 |  |
 | Kurt Pellegrino | 7-5-0 UFC | #1730 | |
 | Kurtis Campbell | 0-1-0 UFC | #1506 |  |
 | Kurtis Ellis | 1-1-0 REC | #6511 | |
 | Kuushi Ishizaka | 1-0-0 REC | #2851 | |
 | Kuya Ito | 0-1-0 REC | #6142 | |
 | Kwan Ho Kwak | 0-2-0 UFC | #5482 |  |