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.
| Mathew Haines | White | Border Grappling Club |
| Mathew Korgees | White | Camden Valley Wrestling |
| Mathew Leishman | Blue | Border Grappling Club |
| Mathew Murray | Blue | Humble MMA |
| Mathew Murray | Unknown belt | Ako Martial Arts |
| Mathew Neilson | Blue | Gracie Barra Charlestown |
| Mathew Remaili | White | Apex Brazilian Jiu Jitsu |
| Mathew Trec | White | Coringa Jiu-Jitsu |
| Mathew Vranich | White | Virtue Brazilian Jiu-Jitsu Australia |
| Mathew Wilken | Black | Southern Cross Jiu-Jitsu Academy |
| Mathias Groenlund | Grey | Invictus MMA - Tullamarine |
| Mathias Martin | Blue | Cia Paulista Australia |
| Mathias Mastrorocco | Grey | Insight Jiu Jitsu Academy |
| Mathias Souto | Grey | TJJ SCHOOL AUSTRALIA |
| Mathieu Bonnemain | White | UFC GYM SYDNEY |
| Mathieu Savelli | White | Homeground Jiu-Jitsu |
| Mathilde Courarie | White | Kimura Nouméa |
| Mati Momika | White | TFC - The Fight Centre |
| Matias Acosta | Unknown belt | The Agoge Brazilian Jiu-Jitsu |
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