Poids Mi-Moyens Hommes
 | Keyth Dawson | 0-1-0 REC | #7666 |  |
 | Keyvan Rezaei | 0-1-0 REC | #6902 |  |
 | Khadim Dia | 6-0-0 REC | #1160 |  |
 | Khaled Mahmoud | 0-1-0 REC | #6429 |  |
 | Khalid Satuev | 2-1-0 REC | #1233 |  |
 | Khalid Shaykhaev | 2-0-0 REC | #888 | |
 | Khamzat Abaev | 1-1-0 REC | #1278 | |
 | Khamzat Sakalov | 0-1-0 REC | #6509 | |
 | Khaos Williams | 7-4-0 UFC | #575 | |
 | Khindalbek Burizhonov | 0-1-0 REC | #6941 | |
 | Kiefer Crosbie | 0-3-0 UFC | #2928 |  |
 | Kiichi Kunimoto | 3-2-0 UFC | #3555 |  |
 | Kirill Negru | 0-1-0 REC | #6433 |  |
 | Kishvar Khudoyorov | 0-1-0 REC | #7709 | |
 | Kit Cope | 0-1-0 UFC | #5694 | |
 | Kitt Campbell | 2-0-0 REC | #2559 |  |
 | Konrad Rusinski | 3-3-0 REC | #1020 |  |
 | Krystian Kaszubowski | 1-4-0 REC | #3312 | |
 | Kuat Khamitov | 1-0-0 REC | #3041 |  |
 | Kun Marcell | 1-0-0 REC | #8027 |  |