Sorted alphabetically by last name · 2715 fighters
| Name | Nickname | |
|---|---|---|
| KS | Kiru Sahota | |
| KC | Kit Cope | "Havoc" |
| KS | Klaudia Sygula | |
| KR | Kleydson Rodrigues | "KR" |
| KA | Klidson Abreu | "White Bear" |
| KS | Kody Steele | |
| KK | Koji Kitao | |
| KO | Koji Oishi | |
| KE | Konstantin Erokhin | |
| KM | Kris McCray | "Savage" |