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.
| Matthew Cameron |
| White |
| Southside Training Centre |
| Matthew Camm | Purple | Australian Elite Team |
| Matthew Campbell | White | Shibusa |
| Matthew Car | White | CHECKMAT |
| Matthew Cardillo | White | Australian Elite Team |
| Matthew Carlton | White | Southern Cross Jiu-Jitsu Academy |
| Matthew Cassar | Blue | Arte Suave Brazilian Jiu Jitsu |
| Matthew Chiang | Blue | Global Martial Arts AU |
| Matthew Clark | White | Renegade Grappling |
| Matthew Clarke | Purple | Ronin Jiu-Jitsu Newcastle |
| Matthew Cloak | Blue | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Matthew Colburn | Unknown belt | Jacks gym |
| Matthew Collins | White | Australian Elite Team |
| Matthew Cooke | White | Gemina Sports Port Kennedy |
| Matthew Cooper | White | Southside Training Centre |
| Matthew Cooper | White | Carlson Gracie Gold Coast |
| Matthew Crowden | White | Danger Close Martial Arts |
| Matthew D'Aloia | White | Element Australia |
| Matthew D'Aquino | Unknown belt | Beyond Grappling Club |
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