People who have competed at Australian events. Australia only, for now.
| Kristoffer Wild | Brown | 10th Planet Jiu Jitsu Australia |
| Kristopher Nguyen | Unknown belt | Forza Jiu Jitsu |
| Kristopher Tonner | Blue | Mildura Brazilian Jiu Jitsu |
| Kron Roebig | White | Axis Jiu-Jitsu Academy Australia |
| Krystal Lawson | White | Grow Strong MMA |
| Krystie-Leigh Pattison | Blue | Fight Club Jiu-Jitsu team |
| Krystle Turnbull | White | Locals Jiu Jitsu Academy |
| Ksenija Panic | Yellow | Complete Mixed Martial Arts |
| Kubra Hasan | Black | Olympic Martial Arts Centre |
| Kuch Ater | White | Resilience Training Centre |
| Kun Lin | Blue | SJJA Team |
| Kuni Nakajima | Purple | Revolution Martial Arts Australia |
| Kurosh Ghorbani | Yellow | Cassidy Combat Club |
| Kurt Crebbin | Blue | Base Training Centre |
| Kurt Dawson | White | HUIA MARTIAL ARTS |
| Kurt De Amyand | Blue | Essence Brazilian Jiu Jitsu |
| Kurt Fynn | Blue | VANGUARD JIU JITSU |
| Kurt Kreutner | Blue | Armour Brazilian Jiujitsu |
| Kurt Nichols | Unknown belt | Valor Performance Centre |
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