Poids Légers Hommes
 | Kanybek Zhanybekov | 0-2-0 REC | #4288 |  |
 | Karan Mosebach | #7163 |  | |
 | Karol Arteaga | 0-1-0 REC | #6188 |  |
 | Kase Tucker | #7447 |  | |
 | Katsunori Kikuno | 2-3-0 UFC | #3109 |  |
 | Kauan Leopoldina | 0-1-0 REC | #5333 |  |
 | Kaue Fernandes | 3-1-0 UFC | #867 | |
 | Kaynan Kruschewsky | 0-2-0 UFC | #3782 | |
 | Kazbek Damaev | 0-1-0 REC | #5799 |  |
 | Kazuki Tokudome | 1-3-0 UFC | #3705 | |
 | Kazuma Maruyama | 0-1-0 REC | #6450 | |
 | Kegan Agnew | 0-1-0 REC | #6558 | |
 | Kegan Gennrich | 2-2-0 REC | #3333 | |
 | Kelly Dullanty | 0-1-0 UFC | #5803 | |
 | Kelton Sneve | 4-1-0 REC | #930 |  |
 | Kendall Sandifer | 1-0-0 REC | #5737 | |
 | Kenneth Cross | 1-1-0 REC | #3507 | |
 | Kenny Mokhonoana | 4-3-0 REC | #696 |  |
 | Kenzi Khouadra | 0-1-0 REC | #5905 |  |
 | Keoni Diggs | 1-2-0 REC | #5010 | |