Poids Lourds Hommes
 | Kerisson Leal | 0-2-0 REC | #7235 |  |
 | Kerry Schall | 0-1-0 UFC | #4914 |  |
 | Kevin Ferguson | 1-1-0 UFC | #1649 | |
 | Kevin Jordan | 0-2-0 UFC | #4900 | |
 | Kevin Rosier | 1-2-0 UFC | #3850 | |
 | Kevin Szaflarski | 0-1-0 REC | #6687 |  |
 | Khadis Ibragimov | 0-4-0 UFC | #959 |  |
 | Khetag Sabeev | #7770 | | |
 | Kimo Leopoldo | 2-4-0 UFC | #2742 | |
 | Kirill Grishenko | 1-0-0 REC | #2164 |  |
 | Kirill Kornilov | 4-2-0 REC | #1155 | |
 | Klidson Abreu | 1-2-0, 1NC UFC | #1479 | |
 | Koji Kitao | 0-1-0 UFC | #4946 |  |
 | Konstantin Erokhin | 0-2-0 UFC | #4925 | |
 | Kousuke Kindaichi | 0-1-0 REC | #6375 | |
| Kovacs Zsombor | 0-1-0 REC | #7895 |  |
 | Kristof Midoux | 0-1-0 UFC | #2985 |  |
 | Lamine Sene | 0-2-0 REC | #3477 |  |
 | Larry Cureton | 0-2-0 UFC | #5157 | |
 | Larry Gonzales | 0-2-0 REC | #4972 | |