Poids Mi-Moyens Hommes
 | Keita Nakamura | 4-7-0 UFC | #2362 |  |
 | Keith Wisniewski | 0-4-0 UFC | #4117 |  |
 | Kelvin Rayford | 0-1-0 REC | #6735 | |
 | Ken Burrs | 0-1-0 REC | #6205 | |
 | Kenan Song | 6-5-0 UFC | #1531 |  |
 | Kendly St. Louis | 3-2-0 REC | #2303 | |
 | Kenny Robertson | 4-5-0 UFC | #2570 | |
 | Kevin Burns | 2-3-0 UFC | #3544 | |
 | Kevin Holland | 16-12-0, 1NC UFC | #144 | |
 | Kevin Jousset | 2-2-0 UFC | #1555 |  |
 | Kevin Pease | 1-0-0 REC | #6172 | |
 | Kevin Ruart | #7812 |  | |
 | Keyth Dawson | 0-1-0 REC | #7568 | |
 | Keyvan Rezaei | 0-1-0 REC | #6755 |  |
 | Khadim Dia | 6-0-0 REC | #1096 |  |
 | Khaled Mahmoud | 0-1-0 REC | #6461 |  |
 | Khalid Satuev | 2-1-0 REC | #1092 |  |
 | Khalid Shaykhaev | 2-0-0 REC | #746 | |
 | Khamzat Abaev | 1-1-0 REC | #1150 | |
 | Khamzat Sakalov | 0-1-0 REC | #6429 | |