Tous les combattants
 | Kirill Kornilov | 4-2-0 REC | #1116 |  |
 | Kirill Kudaktin | 0-1-0 REC | #5703 |  |
 | Kirill Medvedovski | 0-1-0 REC | #7261 |  |
 | Kirill Negru | 0-1-0 REC | #6155 |  |
 | Kiru Sahota | 0-1-0 UFC | #2959 |  |
 | Kisa Miyake | 0-1-0 REC | #5821 |  |
 | Kishvar Khudoyorov | 0-1-0 REC | #7325 | |
 | Kit Cope | 0-1-0 UFC | #5338 |  |
 | Kitt Campbell | 2-0-0 REC | #2207 |  |
 | Kiya O'Sullivan | 0-1-0 REC | #5109 |  |
 | Kkhiri Kkhiriev | 2-0-0 REC | #1202 | |
 | Klaudia Sygula | 2-1-0 UFC | #1592 |  |
 | Kleber Koike | 2-3-0 REC | #1844 |  |
 | Kleber Silva | 2-3-0 REC | #3803 | |
 | Kleberson Sousa | 0-1-0 REC | #6725 | |
 | Kleydson Rodrigues | 1-3-0 UFC | #3327 | |
 | Klidson Abreu | 1-2-0, 1NC UFC | #1452 | |
 | Kodai Yamasaki | 0-1-0 REC | #6167 | |
 | Kody Steele | 1-1-0 UFC | #694 | |
 | Kohl Laren | 0-3-0 REC | #3264 | |
 | Koji Kitao | 0-1-0 UFC | #4886 | |
 | Koji Oishi | 0-2-0 UFC | #5114 | |
 | Koji Takeda | 2-2-0 REC | #1768 | |
 | Koki Akada | 0-4-0 REC | #3203 | |
 | Kolton Englund | 0-2-0 REC | #4219 | |