Poids Légers Hommes
 | Kelton Sneve | 5-1-0 REC | #804 |  |
 | Kendall Sandifer | 1-0-0 REC | #6292 |  |
 | Kendall Whited | #7981 | | |
 | Kenneth Cross | 1-2-0 REC | #1884 | |
 | Kenny Mokhonoana | 4-3-0 REC | #1306 |  |
 | Kenzi Khouadra | 0-2-0 REC | #3959 |  |
 | Keoni Diggs | 1-2-0 REC | #5386 | |
 | Kevin Carrier | 3-2-0 REC | #577 | |
 | Kevin Enz | 1-3-0 REC | #3310 |  |
 | Kevin Lee | 11-8-0 UFC | #436 | |
 | Kevin Robledo | 0-1-0 REC | #6815 |  |
 | Kevin Syler | 1-1-0 REC | #5149 |  |
 | Khabib Nurmagomedov | 13-0-0 UFC | #84 |  |
 | Khairulla Khaitullaev | 0-1-0 REC | #5793 | |
 | Khama Worthy | 2-3-0 UFC | #3419 | |
 | Khamzat Salakhanov | 0-1-0 REC | #6504 | |
 | Khasu Khazaev | 1-0-0 REC | #2469 | |
 | Khumoyun Tukhtamuradov | #7350 |  | |
 | Killian Layour | 0-1-0 REC | #7671 | |
 | Killys Mota | 3-1-0 REC | #3622 |  |