Poids Légers Hommes
 | Kohl Laren | 0-3-0 REC | #3354 |  |
 | Kolton Englund | 0-2-0 REC | #4273 | |
 | Konrad Dyrschka | 3-0-0 REC | #2435 |  |
 | Konstantinos Ntelis | 3-1-0 REC | #1356 |  |
 | Korey Taylor | 0-1-0 REC | #5548 |  |
 | Korey Windham | 0-1-0 REC | #7332 | |
 | Kousuke Sugimura | 1-0-0 REC | #3028 |  |
 | Kristians Boguzs | 1-0-0 REC | #1829 |  |
 | Krisztian Simon | 0-1-0 REC | #7714 |  |
 | Krystian Blezien | 1-2-0 REC | #3417 |  |
 | Krzysztof Mendlewski | 0-1-0 REC | #5598 | |
 | Kuniyoshi Hironaka | 1-3-0 UFC | #4270 | |
 | Kurt Holobaugh | 2-7-0 UFC | #2274 | |
 | Kurt Pellegrino | 7-5-0 UFC | #1776 | |
 | Kye Stevens | 0-2-0 REC | #6695 |  |
 | Kyle Driscoll | 3-0-0 REC | #2638 | |
 | Kyle Nelson | 5-6-1 UFC | #987 |  |
 | Kyle Prepolec | 0-5-0 UFC | #891 | |
 | Kyle Pufahl | 1-2-0 REC | #3058 | |
 | Kyle Watson | 1-1-0 UFC | #5917 | |