Poids Légers Hommes
 | Killys Mota | 3-1-0 REC | #3739 |  |
 | King Green | 17-12-1, 1NC UFC | #80 |  |
 | Kirill Kudaktin | 0-1-0 REC | #6026 |  |
 | Kody Steele | 1-1-0 UFC | #1029 | |
 | Kohl Laren | 0-3-0 REC | #3427 | |
 | Kolton Englund | 0-2-0 REC | #4352 | |
 | Konrad Dyrschka | 3-0-0 REC | #2541 |  |
 | Konstantinos Ntelis | 3-1-0 REC | #1527 |  |
 | Korey Taylor | 0-1-0 REC | #5640 |  |
 | Korey Windham | 0-1-0 REC | #7300 | |
 | Kousuke Sugimura | 1-0-0 REC | #3179 |  |
 | Kristians Boguzs | 1-0-0 REC | #1959 |  |
 | Krisztian Simon | 0-1-0 REC | #7806 |  |
 | Krystian Blezien | 1-2-0 REC | #3462 |  |
 | Krzysztof Mendlewski | 0-1-0 REC | #5629 | |
 | Kuniyoshi Hironaka | 1-3-0 UFC | #4321 | |
 | Kurt Holobaugh | 2-7-0 UFC | #2301 | |
 | Kurt Pellegrino | 7-5-0 UFC | #1790 | |
 | Kye Stevens | 0-2-0 REC | #6771 |  |
 | Kyle Driscoll | 3-0-0 REC | #2692 | |