Poids Légers Hommes
 | Kacper Fornalski | 1-2-0 REC | #3738 |  |
 | Kajan Johnson | 4-3-0 UFC | #2013 |  |
 | Kamal Shalorus | 0-3-0 UFC | #2719 |  |
 | Kamuela Kirk | 1-2-0 UFC | #3814 |  |
 | Kane Mousah | 1-3-0 REC | #3927 |  |
 | Kanybek Zhanybekov | 0-2-0 REC | #4876 |  |
 | Karan Mosebach | #7799 |  | |
 | Karol Arteaga | 1-1-0 REC | #2152 |  |
 | Kase Tucker | #8010 | | |
 | Katsunori Kikuno | 2-3-0 UFC | #3488 |  |
 | Kauan Leopoldina | 0-1-0 REC | #6305 |  |
 | Kaue Fernandes | 3-2-0 UFC | #595 | |
 | Kaynan Kruschewsky | 0-2-0 UFC | #3989 | |
 | Kazbek Damaev | 0-1-0 REC | #6676 |  |
 | Kazuki Tokudome | 1-3-0 UFC | #4049 | |
 | Kazuma Maruyama | 0-1-0 REC | #6517 | |
 | Kegan Agnew | 0-1-0 REC | #7346 | |
 | Kegan Gennrich | 3-2-0 REC | #1292 | |
 | Kelly Dullanty | 0-1-0 UFC | #5893 | |
 | Kelton Sneve | 5-1-0 REC | #1054 | |