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.
| Joshua Castelino | Blue | Irontiger Australia |
| Joshua Chia | Blue | Omega Jiu Jitsu and Mixed Martial Arts |
| Joshua Choy | Blue | Immersion MMA |
| Joshua Church | White | Rob Williams BJJ |
| Joshua Clouston | Purple | Rhythm Jiu Jitsu |
| Joshua Cogan | White | One Tao Kung Fu Academy |
| Joshua Coghlan | Blue | Full Metal Jiu Jitsu / ATOS Burleigh Heads |
| Joshua Colyn | Purple | Evolution BJJ |
| Joshua Connell-Evans | White | Will Machado - Comp Team |
| Joshua Conte | Blue | Life BJJ |
| Joshua Corban-Banks | White | Australia ASBJJ |
| Joshua Coseski | White | Team Norton BJJ |
| Joshua Coulson | White | Axis Jiu-Jitsu Academy Australia |
| Joshua Covino | White | The MatLab Grappling Academy |
| Joshua Cross | Blue | Technique Jiu Jitsu |
| Joshua Cunningham | White | Ronin Jiu-Jitsu Newcastle |
| Joshua Damian Arena | Purple | Waves Martial Arts Comp Team |
| Joshua Dang | Unknown belt | Fight Club Jiu-Jitsu team |
| Joshua Daniell | White | Team Sparta |
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