Sorted alphabetically by last name · 2715 fighters
| Name | Nickname | |
|---|---|---|
| KJ | Kevin Jordan | "The Shaman" |
| KJ | Kevin Jousset | "Air" |
| KL | Kevin Lee | "The Motown Phenom" |
| KN | Kevin Natividad | "Quicksand" |
| KR | Kevin Randleman | "The Monster" |
| KR | Kevin Rosier | |
| KV | Kevin Vallejos | "El Chino" |
| KN | Khabib Nurmagomedov | "The Eagle" |
| KI | Khadis Ibragimov | |
| KM | Khalid Murtazaliev |