Poids Légers Hommes
 | Killys Mota | 3-1-0 REC | #3622 |  |
 | King Green | 16-12-1, 1NC UFC | #100 |  |
 | Kirill Kudaktin | 0-1-0 REC | #5684 |  |
 | Kody Steele | 1-1-0 UFC | #668 | |
 | Kohl Laren | 0-3-0 REC | #3252 | |
 | Koji Takeda | 2-2-0 REC | #1749 |  |
 | Kolton Englund | 0-2-0 REC | #4192 | |
 | Konrad Dyrschka | 3-0-0 REC | #2296 |  |
 | Konstantinos Ntelis | 3-1-0 REC | #1133 |  |
 | Korey Taylor | 0-1-0 REC | #5411 |  |
 | Korey Windham | 0-1-0 REC | #7278 | |
 | Kousuke Sugimura | 1-0-0 REC | #2837 | |
 | Kristians Boguzs | 1-0-0 REC | #1556 |  |
 | Krisztian Simon | 0-1-0 REC | #7574 |  |
 | Krystian Blezien | 1-2-0 REC | #3327 |  |
 | Krzysztof Mendlewski | 0-1-0 REC | #5481 | |
 | Kuniyoshi Hironaka | 1-3-0 UFC | #4223 | |
 | Kurt Holobaugh | 2-7-0 UFC | #2208 | |
 | Kurt Pellegrino | 7-5-0 UFC | #1730 | |
 | Kye Stevens | 0-2-0 REC | #6650 |  |