Poids Mi-Moyens Hommes
 | Khamzat Abaev | 0-1-0 REC | #4028 |  |
 | Khamzat Sakalov | 0-1-0 REC | #5776 | |
 | Khaos Williams | 6-4-0 UFC | #1345 |  |
 | Kiefer Crosbie | 0-3-0 UFC | #2508 |  |
 | Kiichi Kunimoto | 3-2-0 UFC | #3172 |  |
 | Kirill Negru | 0-1-0 REC | #5545 |  |
 | Kishvar Khudoyorov | 0-1-0 REC | #6770 | |
 | Kit Cope | 0-1-0 UFC | #5220 | |
 | Kitt Campbell | 2-0-0 REC | #1660 |  |
 | Krystian Kaszubowski | 1-4-0 REC | #2816 |  |
 | Kuat Khamitov | 1-0-0 REC | #2184 |  |
 | Kun Marcell | 1-0-0 REC | #7443 |  |
 | Kunle Lawal | 1-0-0 REC | #2452 |  |
 | Kurbanali Isabekov | 0-1-0 REC | #5140 | |
 | Kyle Bradley | 1-3-0 UFC | #3473 | |
 | Kyle Crutchmer | 2-1-0 REC | #4299 | |
 | Kyle Noke | 6-6-0 UFC | #2053 | |
 | Kyron Bowen | 0-3-0 REC | #4934 | |
 | Lance Benoist | 2-2-0 UFC | #3660 | |
 | Laureano Staropoli | 2-4-0 UFC | #1538 |  |