Tous les combattants
 | Kinnedy Hundley | 0-1-0 REC | #5171 |  |
 | Kiran Singh | 0-1-0 REC | #5300 |  |
 | Kirill Grishenko | 1-0-0 REC | #1822 |  |
 | Kirill Kornilov | 4-2-0 REC | #864 |  |
 | Kirill Kudaktin | 0-1-0 REC | #5560 | |
 | Kirill Medvedovski | 0-1-0 REC | #7255 |  |
 | Kirill Negru | 0-1-0 REC | #5820 |  |
 | Kiru Sahota | 0-1-0 UFC | #2845 |  |
 | Kisa Miyake | 0-1-0 REC | #5622 |  |
 | Kishvar Khudoyorov | 0-1-0 REC | #7016 | |
 | Kit Cope | 0-1-0 UFC | #5234 | |
 | Kitt Campbell | 2-0-0 REC | #1931 |  |
 | Kiya O'Sullivan | 0-1-0 REC | #4893 |  |
 | Kkhiri Kkhiriev | 2-0-0 REC | #858 | |
 | Klaudia Sygula | 2-1-0 UFC | #1296 |  |
 | Kleber Koike Erbst | 2-3-0 REC | #1566 |  |
 | Kleber Silva | 2-3-0 REC | #3592 | |
 | Kleberson Sousa | 0-1-0 REC | #6444 | |
 | Kleydson Rodrigues | 1-3-0 UFC | #3173 | |
 | Klidson Abreu | 1-2-0, 1NC UFC | #1264 | |
 | Kodai Yamasaki | 0-1-0 REC | #6048 | |
 | Kody Steele | 1-1-0 UFC | #420 | |
 | Kohl Laren | 0-3-0 REC | #3115 | |
 | Koji Kitao | 0-1-0 UFC | #4653 | |
 | Koji Oishi | 0-2-0 UFC | #5096 | |