Tous les combattants
 | Kimo Leopoldo | 2-4-0 UFC | #2833 |  |
 | King Edokpolo | 3-0-0 REC | #744 |  |
 | King Green | 17-13-1, 1NC UFC | #83 | |
 | King Rikuto | #8153 | | |
 | Kinnedy Hundley | 0-1-0 REC | #5900 | |
 | Kiran Singh | 0-1-0 REC | #5969 |  |
 | Kirill Grishenko | 1-0-0 REC | #2641 |  |
 | Kirill Kornilov | 5-2-0 REC | #397 |  |
 | Kirill Kudaktin | 0-1-0 REC | #6244 | |
 | Kirill Medvedovski | 0-1-0 REC | #7395 |  |
 | Kirill Negru | 0-1-0 REC | #6591 |  |
 | Kiru Sahota | 0-1-0 UFC | #3107 |  |
 | Kisa Miyake | 0-1-0 REC | #5996 | |
 | Kishvar Khudoyorov | 0-1-0 REC | #7877 | |
 | Kit Cope | 0-1-0 UFC | #5855 | |
 | Kitt Campbell | 2-0-0 REC | #2695 |  |
 | Kiya O'Sullivan | 0-1-0 REC | #5492 |  |
 | Kkhiri Kkhiriev | 2-0-0 REC | #1875 | |
 | Klaudia Sygula | 2-2-0 UFC | #1082 |  |
 | Kleber Koike | 2-4-0 REC | #1969 |  |
 | Kleber Silva | 2-3-0 REC | #4057 | |
 | Kleberson Sousa | 0-1-0 REC | #6964 | |
 | Kleydson Rodrigues | 1-3-0 UFC | #3468 | |
 | Klidson Abreu | 1-2-0, 1NC UFC | #1769 | |
 | Kodai Yamasaki | 0-1-0 REC | #6561 | |