Poids Lourds Hommes
 | Kevin Szaflarski | 0-1-0 REC | #6609 |  |
 | Khadis Ibragimov | 0-4-0 UFC | #562 |  |
 | Khetag Sabeev | #7548 | | |
 | Kimo Leopoldo | 2-4-0 UFC | #2623 |  |
 | Kirill Grishenko | 1-0-0 REC | #1721 |  |
 | Kirill Kornilov | 4-2-0 REC | #777 | |
 | Klidson Abreu | 1-2-0, 1NC UFC | #1307 |  |
 | Koji Kitao | 0-1-0 UFC | #4618 |  |
 | Konstantin Erokhin | 0-2-0 UFC | #4926 | |
 | Kousuke Kindaichi | 0-1-0 REC | #5987 | |
| Kovacs Zsombor | 0-1-0 REC | #7618 |  |
 | Kristof Midoux | 0-1-0 UFC | #2820 |  |
 | Lamine Sene | 0-2-0 REC | #3249 |  |
 | Larry Cureton | 0-2-0 UFC | #4964 | |
 | Larry Gonzales | 0-2-0 REC | #4540 | |
 | Lavar Johnson | 2-2-0 UFC | #3884 | |
 | Lazar Todev | 5-2-0 REC | #682 |  |
 | Leon Mackey Jr. | 1-1-0 REC | #6561 | |
 | Leonardo Fraga | 0-1-0 REC | #7603 | |
 | Leonardo Guimaraes | 0-2-0 UFC | #2117 | |