Poids Plumes Hommes
 | Khakimzhan Davronov | 0-1-0 REC | #7183 |  |
 | Khalid Musaev | 0-1-0 REC | #6407 | |
 | Khalid Taha | 1-4-0, 1NC UFC | #1601 |  |
 | Khamzat Khachukaev | 1-0-0 REC | #666 | |
 | Khanzala Magomadov | 1-0-0 REC | #6838 | |
 | Khasan Dadalov | 4-0-0 REC | #942 | |
 | Khasan Magomedsharipov | 4-0-0 REC | #675 | |
 | Khaseyn Shaykhaev | 1-0-0 REC | #5452 | |
 | Khaskil Amirkhanov | 0-1-0 REC | #7422 | |
| Khetag Morgoev | 1-0-0 REC | #3106 | |
 | Khusein Askhabov | 0-1-0 UFC | #5539 | |
 | Kim Tinghaugen | 0-1-0 REC | #7087 |  |
 | Kisa Miyake | 0-1-0 REC | #5831 |  |
 | Kleber Koike | 2-4-0 REC | #1810 |  |
 | Koji Oishi | 0-2-0 UFC | #5182 | |
 | Koji Takeda | 3-2-0 REC | #377 | |
 | Konmon Deh | 0-2-0 REC | #5026 |  |
 | Konstantin Podoynitsyn | 0-1-0 REC | #6221 | |
 | Kota Miura | 0-2-0 REC | #2247 | |
 | Kouki Nakagawa | 1-0-0 REC | #2252 | |