Tous les combattants
 | Khavid Dakaev | 2-0-0 REC | #1989 |  |
 | Khetag Morgoev | 1-0-0 REC | #3053 | |
| Khetag Sabeev | #7874 | | |
 | Khindalbek Burizhonov | 0-1-0 REC | #7068 | |
| Khizir Magomadov | 1-0-0 REC | #1149 | |
 | Kholmurod Nurmatov | 1-4-0 REC | #2136 |  |
 | Khumoyun Tukhtamuradov | #7416 | | |
 | Khurshed Kakhorov | 4-1-0 REC | #3024 |  |
 | Khusein Askhabov | 0-1-0 UFC | #5589 | |
 | Khuseyn Tatalaev | 0-1-0 REC | #7340 | |
 | Kibedy Gordon | 1-0-0 REC | #5192 |  |
 | Kiefer Crosbie | 0-3-0 UFC | #2854 |  |
 | Kiichi Kunimoto | 3-2-0 UFC | #3479 |  |
 | Kikadze Bondo | 1-0-0 REC | #6306 |  |
| Killian Layour | 0-1-0 REC | #7761 |  |
 | Killys Mota | 3-1-0 REC | #3725 |  |
 | Kim Tinghaugen | 0-1-0 REC | #7069 |  |
 | Kim Tran | #8056 |  | |
 | Kimbert Alintozon | 0-1-0 REC | #5570 |  |
 | Kimo Leopoldo | 2-4-0 UFC | #2776 |  |
 | King Edokpolo | 3-0-0 REC | #410 | |
 | King Green | 17-12-1, 1NC UFC | #71 | |
 | King Rikuto | #7914 | | |
 | Kinnedy Hundley | 0-1-0 REC | #5617 | |
 | Kiran Singh | 0-1-0 REC | #5635 |  |