Tous les combattants
 | Khavid Dakaev | 2-0-0 REC | #1774 |  |
 | Khetag Morgoev | 1-0-0 REC | #2766 | |
| Khetag Sabeev | #7746 | | |
 | Khindalbek Burizhonov | 0-1-0 REC | #8125 | |
| Khizir Magomadov | 1-0-0 REC | #807 | |
 | Kholmurod Nurmatov | 1-4-0 REC | #1954 |  |
 | Khumoyun Tukhtamuradov | #7368 | | |
 | Khurshed Kakhorov | 4-1-0 REC | #2979 |  |
 | Khusein Askhabov | 0-1-0 UFC | #5487 | |
 | Khuseyn Tatalaev | 0-1-0 REC | #7108 | |
 | Kibedy Gordon | 1-0-0 REC | #5186 |  |
 | Kiefer Crosbie | 0-3-0 UFC | #2771 |  |
 | Kiichi Kunimoto | 3-2-0 UFC | #3428 |  |
 | Kikadze Bondo | 1-0-0 REC | #6250 |  |
| Killian Layour | 0-1-0 REC | #7679 |  |
 | Killys Mota | 3-1-0 REC | #3628 |  |
 | Kim Tinghaugen | 0-1-0 REC | #6987 |  |
 | Kim Tran | #7947 |  | |
 | Kimbert Alintozon | 0-1-0 REC | #5973 |  |
 | Kimo Leopoldo | 2-4-0 UFC | #2736 |  |
 | King Green | 17-12-1, 1NC UFC | #98 | |
 | King Rikuto | #7780 | | |
 | Kinnedy Hundley | 0-1-0 REC | #5461 | |
 | Kiran Singh | 0-1-0 REC | #5506 |  |
 | Kirill Grishenko | 1-0-0 REC | #2112 |  |