Poids Légers Hommes
 | Kirill Kudaktin | 0-1-0 REC | #5961 |  |
 | Kody Steele | 1-1-0 UFC | #982 |  |
 | Kohl Laren | 0-3-0 REC | #3419 | |
 | Kolton Englund | 0-2-0 REC | #4318 | |
 | Konrad Dyrschka | 3-0-0 REC | #2517 |  |
 | Konstantinos Ntelis | 3-1-0 REC | #1482 |  |
 | Korey Taylor | 0-1-0 REC | #5573 |  |
 | Korey Windham | 0-1-0 REC | #7309 | |
 | Kousuke Sugimura | 1-0-0 REC | #3137 |  |
 | Kristians Boguzs | 1-0-0 REC | #1918 |  |
 | Krisztian Simon | 0-1-0 REC | #7774 |  |
 | Krystian Blezien | 1-2-0 REC | #3445 |  |
 | Krzysztof Mendlewski | 0-1-0 REC | #5598 | |
 | Kuniyoshi Hironaka | 1-3-0 UFC | #4312 | |
 | Kurt Holobaugh | 2-7-0 UFC | #2277 | |
 | Kurt Pellegrino | 7-5-0 UFC | #1777 | |
 | Kye Stevens | 0-2-0 REC | #6743 |  |
 | Kyle Driscoll | 3-0-0 REC | #2674 | |
 | Kyle Nelson | 5-6-1 UFC | #1046 |  |
 | Kyle Prepolec | 0-5-0 UFC | #957 | |