Poids Mi-Moyens Hommes
 | Kenan Song | 6-5-0 UFC | #1578 |  |
 | Kendly St. Louis | 3-2-0 REC | #2250 |  |
 | Kenny Robertson | 4-5-0 UFC | #2559 | |
 | Kevin Burns | 2-3-0 UFC | #3521 | |
 | Kevin Holland | 16-12-0, 1NC UFC | #137 | |
 | Kevin Jousset | 2-2-0 UFC | #1548 |  |
 | Kevin Pease | 1-0-0 REC | #6169 | |
 | Kevin Ruart | #7785 |  | |
 | Keyth Dawson | 0-1-0 REC | #7556 | |
 | Keyvan Rezaei | 0-1-0 REC | #6648 |  |
 | Khadim Dia | 6-0-0 REC | #1033 |  |
 | Khaled Mahmoud | 0-1-0 REC | #6383 |  |
 | Khalid Satuev | 2-1-0 REC | #936 |  |
 | Khalid Shaykhaev | 2-0-0 REC | #558 | |
 | Khamzat Abaev | 1-1-0 REC | #1001 | |
 | Khamzat Sakalov | 0-1-0 REC | #6404 | |
 | Khaos Williams | 7-4-0 UFC | #462 | |
 | Khindalbek Burizhonov | 0-1-0 REC | #7122 | |
 | Kiefer Crosbie | 0-3-0 UFC | #2836 |  |
 | Kiichi Kunimoto | 3-2-0 UFC | #3482 |  |