Poids Mi-Moyens Hommes
 | Keith Wisniewski | 0-4-0 UFC | #4148 |  |
 | Kelvin Rayford | 0-1-0 REC | #6713 | |
 | Ken Burrs | 0-1-0 REC | #6264 | |
 | Kenan Song | 6-5-0 UFC | #1531 |  |
 | Kendly St. Louis | 3-2-0 REC | #2326 | |
 | Kenny Robertson | 4-5-0 UFC | #2579 | |
 | Kevin Burns | 2-3-0 UFC | #3548 | |
 | Kevin Holland | 16-12-0, 1NC UFC | #146 | |
 | Kevin Jousset | 2-2-0 UFC | #1566 |  |
 | Kevin Pease | 1-0-0 REC | #6172 | |
 | Kevin Ruart | #7800 |  | |
 | Keyth Dawson | 0-1-0 REC | #7606 | |
 | Keyvan Rezaei | 0-1-0 REC | #6801 |  |
 | Khadim Dia | 6-0-0 REC | #1116 |  |
 | Khaled Mahmoud | 0-1-0 REC | #6425 |  |
 | Khalid Satuev | 2-1-0 REC | #1141 |  |
 | Khalid Shaykhaev | 2-0-0 REC | #789 | |
 | Khamzat Abaev | 1-1-0 REC | #1195 | |
 | Khamzat Sakalov | 0-1-0 REC | #6421 | |
 | Khaos Williams | 7-4-0 UFC | #569 | |