Poids Mi-Moyens Hommes
 | Kamaru Usman | 16-3-0 UFC | #23 |  |
 | Karo Parisyan | 8-4-0, 1NC UFC | #1138 |  |
 | Kazushi Sakuraba | 1-0-0, 1NC UFC | #3574 |  |
 | Keita Nakamura | 4-7-0 UFC | #2142 | |
 | Keith Wisniewski | 0-4-0 UFC | #3854 | |
 | Kenan Song | 6-5-0 UFC | #1367 |  |
 | Kenny Robertson | 4-5-0 UFC | #2284 | |
 | Kevin Burns | 2-3-0 UFC | #3247 | |
 | Kevin Holland | 15-12-0, 1NC UFC | #147 | |
 | Kevin Jousset | 2-2-0 UFC | #1122 |  |
 | Khaos Williams | 6-4-0 UFC | #1328 | |
 | Kiefer Crosbie | 0-3-0 UFC | #2461 |  |
 | Kiichi Kunimoto | 3-2-0 UFC | #3120 | |
 | Kit Cope | 0-1-0 UFC | #5155 | |
 | Kyle Bradley | 1-3-0 UFC | #3401 | |
 | Kyle Noke | 6-6-0 UFC | #1989 |  |
 | Lance Benoist | 2-2-0 UFC | #3602 | |
 | Laureano Staropoli | 2-4-0 UFC | #1534 |  |
 | Leandro Silva | 3-4-0, 1NC UFC | #1427 |  |
 | Leon Edwards | 14-5-0, 1NC UFC | #53 |  |