Combattants Russie
| 301 |  | Justine Kish | 3-4-0 UFC | #2243 |  |
| 302 |  | Kamal Dzhalavov | 1-0-0 REC | #2607 | |
| 303 |  | Kamal Mamedov | 0-3-0 REC | #3189 | |
| 304 |  | Kamil Saidov | 1-0-0 REC | #1866 | |
| 305 |  | Kasum Kasumov | 2-2-0 REC | #2876 | |
| 306 |  | Kazbek Damaev | 0-1-0 REC | #6069 | |
| 307 |  | Khabib Nabiev | 0-1-0 REC | #5168 | |
| 308 |  | Khabib Nurmagomedov | 13-0-0 UFC | #92 | |
| 309 |  | Khadis Ibragimov | 0-4-0 UFC | #519 | |
| 310 |  | Khadzhimurat Bestaev | 0-2-0 REC | #5537 | |
| 311 |  | Khairulla Khaitullaev | 0-1-0 REC | #5849 | |
| 312 |  | Khakimzhan Davronov | 0-1-0 REC | #6440 | |
| 313 |  | Khalid Murtazaliev | 1-0-0 UFC | #3455 | |
| 314 |  | Khalid Musaev | 0-1-0 REC | #5857 | |
| 315 |  | Khalid Satuev | 1-1-0 REC | #1956 | |
| 316 |  | Khalid Shaykhaev | 1-0-0 REC | #2627 | |
| 317 |  | Khamzat Abaev | 0-1-0 REC | #4037 | |
| 318 |  | Khamzat Ilyasov | 1-1-0 REC | #2540 | |
| 319 |  | Khamzat Magomadov | 0-1-0 REC | #6078 | |
| 320 |  | Khamzat Sakalov | 0-1-0 REC | #5938 | |
| 321 |  | Khamzat Salakhanov | 0-1-0 REC | #5954 | |
| 322 |  | Khanzala Magomadov | 1-0-0 REC | #5944 | |
| 323 |  | Khasan Dadalov | 3-0-0 REC | #1869 | |
| 324 |  | Khasan Magomedsharipov | 3-0-0 REC | #2387 | |
| 325 |  | Khaseyn Shaykhaev | 1-0-0 REC | #5303 | |