Poids Légers Hommes
 | Kevin Carrier | 2-2-0 REC | #2060 |  |
 | Kevin Enz | 1-3-0 REC | #2946 |  |
 | Kevin Lee | 11-8-0 UFC | #377 | |
 | Kevin Syler | 1-1-0 REC | #5321 |  |
 | Khabib Nurmagomedov | 13-0-0 UFC | #83 |  |
 | Khairulla Khaitullaev | 0-1-0 REC | #5812 | |
 | Khama Worthy | 2-3-0 UFC | #3188 | |
 | Khamzat Salakhanov | 0-1-0 REC | #5627 | |
 | Khasu Khazaev | 1-0-0 REC | #1844 | |
 | Khumoyun Tukhtamuradov | #7160 |  | |
 | Killys Mota | 3-1-0 REC | #3452 |  |
 | Kirill Kudaktin | 0-1-0 REC | #5375 |  |
 | Kody Steele | 0-1-0 UFC | #2516 | |
 | Kohl Laren | 0-3-0 REC | #2883 | |
 | Koji Takeda | 2-2-0 REC | #1071 |  |
 | Kolton Englund | 0-2-0 REC | #3816 | |
 | Konrad Dyrschka | 3-0-0 REC | #1814 | |
 | Konstantinos Ntelis | 3-1-0 REC | #449 |  |
 | Korey Taylor | #7314 |  | |
 | Korey Windham | 0-1-0 REC | #6859 | |