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.
| Katherine Rosendorff | Blue | Carlson Gracie Team |
| Kathleen Peachey | Brown | Absolute MMA |
| Kathyrine Sandaga | Blue | Five Rings Jiu Jitsu Academy |
| Katia Haggerty | White | De Been 100% Jiu Jitsu |
| Katia Vougiouclis | White | Kings MMA |
| Katie Burke | White | Studio 55 Brazilian Jiu Jitsu |
| Katie Hynes | Purple | Higher Jiu Jitsu |
| Katie Mae Morris | Yellow | MAROCCOLO ACADEMY |
| Katie Turner | Grey | GRACIE BARRA CARINGBAH |
| Kato D’Agostino | White | Fight Club Jiu-Jitsu team |
| Katrina Stewart | Blue | Gracie Elite Australia |
| Kauai Nunes | Purple | Coringa Jiu-Jitsu |
| Kauai Palma | Grey | Team Lead |
| Kauai Pinheiro | Brown | Cavicchini Jiu-jitsu Team |
| Kaue Macruz | Black | Virtue Brazilian Jiu-Jitsu Australia |
| Kauri Lloyd | Blue | Australian Elite Team |
| Kauri Niania | White | Platinum Jiu Jitsu |
| Kaushal Sonah | White | Grappling Bros / GFTeam |
| Kaushik Duber | Blue | Australian Elite Team |
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