People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now. See Australian BJJ rankings for recorded wins by belt, state, and ruleset.
| Kruz Dyson | White | Gracie Barra Hunter Valley |
| Kruz Ward-Booth | White | underground gym ipswich |
| Krystal Lawson | White | Grow Strong MMA |
| Krystie-Leigh Pattison | Blue | Fight Club Jiu-Jitsu team |
| Krystle Rowley | White | Gracie Barra Tamworth (AU) |
| Krystle Turnbull | White | Locals Jiu Jitsu Academy |
| Krzysztof Ganobis | Blue | ISOHEALTH |
| Ksenija Panic | Grey | Complete Mixed Martial Arts |
| Kshema Kadian | White | SJJA Team |
| Kuan Kwee Wong | White | Broz Martial Arts |
| Kuan-Yu Alvin Chen | White | Lab 33 |
| 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 |
| Kuong Seng | White | Sydney Wrestling Academy |
| Kupe Larkins | White | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Kurosh Ghorbani | Yellow | Cassidy Combat Club |
| Kurt Austin | White | Gracie Smeaton Grange |
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