Poids Légers Hommes
 | Kacper Cholewa | #8180 |  | |
 | Kacper Formela | 2-2-0 REC | #2087 | |
 | Kacper Fornalski | 1-2-0 REC | #3762 | |
 | Kajan Johnson | 4-3-0 UFC | #2029 |  |
 | Kamal Shalorus | 0-3-0 UFC | #2722 |  |
 | Kamuela Kirk | 1-2-0 UFC | #3831 |  |
 | Kane Mousah | 1-3-0 REC | #3951 |  |
 | Kanybek Zhanybekov | 0-2-0 REC | #4912 |  |
 | Karan Mosebach | #7821 |  | |
 | Karol Arteaga | 1-1-0 REC | #2184 |  |
 | Kase Tucker | #8022 | | |
 | Katsunori Kikuno | 2-3-0 UFC | #3493 |  |
 | Kauan Leopoldina | 0-1-0 REC | #6345 |  |
 | Kaue Fernandes | 3-2-0 UFC | #632 | |
 | Kaynan Kruschewsky | 0-2-0 UFC | #4012 | |
 | Kazbek Damaev | 0-1-0 REC | #6701 |  |
 | Kazuki Tokudome | 1-3-0 UFC | #4076 | |
 | Kazuma Maruyama | 0-1-0 REC | #6571 | |
 | Kegan Agnew | 0-1-0 REC | #7384 | |
 | Kegan Gennrich | 3-2-0 REC | #1331 | |