Tous les combattants
 | Keyes Nelson | 0-1-0 REC | #7125 |  |
 | Keynan Davis | 1-2-0 REC | #5004 | |
 | Keyth Dawson | 0-1-0 REC | #7426 | |
 | Keyvan Rezaei | 0-1-0 REC | #6081 |  |
 | Khabib Nabiev | 0-1-0 REC | #5102 |  |
 | Khabib Nurmagomedov | 13-0-0 UFC | #90 | |
 | Khadim Dia | 6-0-0 REC | #731 |  |
 | Khadis Ibragimov | 0-4-0 UFC | #704 | |
 | Khadzhimurat Bestaev | 0-2-0 REC | #5519 | |
 | Khai Wu | 0-1-0 REC | #7311 | |
 | Khairulla Khaitullaev | 0-1-0 REC | #5765 | |
 | Khakimzhan Davronov | 0-1-0 REC | #6622 | |
 | Khaled Mahmoud | 0-1-0 REC | #6248 |  |
 | Khalid Murtazaliev | 1-0-0 UFC | #3544 | |
 | Khalid Musaev | 0-1-0 REC | #5857 | |
 | Khalid Satuev | 1-1-0 REC | #2110 | |
 | Khalid Shaykhaev | 1-0-0 REC | #2797 | |
 | Khalid Taha | 1-4-0, 1NC UFC | #1264 |  |
 | Khalil Rountree | 10-7-0, 1NC UFC | #107 | |
 | Khama Worthy | 2-3-0 UFC | #3334 | |
 | Khamzat Abaev | 1-1-0 REC | #479 | |
 | Khamzat Chimaev | 9-1-0 UFC | #16 |  |
 | Khamzat Ilyasov | 1-1-0 REC | #2710 | |
 | Khamzat Magomadov | 0-1-0 REC | #6256 | |
 | Khamzat Sakalov | 0-1-0 REC | #6064 | |