Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| KA | Khusein Askhabov | "Nohcho" |
| KC | Kiefer Crosbie | "BDK" |
| KK | Kiichi Kunimoto | "Strasser" |
| KL | Kimo Leopoldo | |
| KG | King Green | |
| KS | Kiru Sahota | |
| KC | Kit Cope | "Havoc" |
| KS | Klaudia Sygula |
| KR | Kleydson Rodrigues | "KR" |
| KA | Klidson Abreu | "White Bear" |