Poids Lourds Hommes
 | Kerry Schall | 0-1-0 UFC | #5019 |  |
 | Kevin Ferguson | 1-1-0 UFC | #1557 | |
 | Kevin Jordan | 0-2-0 UFC | #4933 | |
 | Kevin Rosier | 1-2-0 UFC | #3897 | |
 | Kevin Szaflarski | 0-1-0 REC | #6766 |  |
 | Khadis Ibragimov | 0-4-0 UFC | #1133 |  |
 | Khetag Sabeev | #7873 | | |
 | Kimo Leopoldo | 2-4-0 UFC | #2772 | |
 | King Edokpolo | 3-0-0 REC | #2861 |  |
 | Kirill Grishenko | 1-0-0 REC | #2325 |  |
 | Kirill Kornilov | 4-2-0 REC | #1315 | |
 | Klidson Abreu | 1-2-0, 1NC UFC | #1561 |  |
 | Koji Kitao | 0-1-0 UFC | #5066 | |
 | Konstantin Erokhin | 0-2-0 UFC | #4968 | |
 | Kousuke Kindaichi | 0-1-0 REC | #6510 | |
| Kovacs Zsombor | 0-1-0 REC | #7957 |  |
 | Kristof Midoux | 0-1-0 UFC | #3037 |  |
 | Lamine Sene | 0-2-0 REC | #3503 |  |
 | Larry Cureton | 0-2-0 UFC | #5239 | |
 | Larry Gonzales | 0-2-0 REC | #4937 | |