People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now.
| Matthew Lydon | Blue | Absolute MMA |
| Matthew Marks | Blue | Midwest Martial Arts Geraldton |
| Matthew McAdam | Unknown belt | Integrated Combat Centre - Peakhurst |
| Matthew Menday | White | Martial Arts Spirit |
| Matthew Moller | Grey | BONDI JIU JITSU ACADEMY |
| Matthew Muller | Purple | Grey Wolf Brazilian Jiu Jitsu |
| Matthew Murphie | Blue | Gracie Smeaton Grange |
| Matthew Napier | Blue | De Been 100% Jiu Jitsu |
| Matthew Newman | Purple | Elements Grappling Academy |
| Matthew Nicholson | White | The Academy of Grounding |
| Matthew Pearmine | White | Taurus Brazilian Jiu Jitsu |
| Matthew Persse | Purple | Gracie Barra Mount Lawley |
| Matthew Pert | White | Element Australia |
| Matthew Phung | Purple | Kumite Jiu Jitsu |
| Matthew Prodanovic | Blue | Carlson Gracie Team |
| Matthew Reeves | Unknown belt | BLUE MOUNTAINS MARTIAL ARTS CENTRE |
| Matthew Reilly | Brown | Gracie Barra Edgeworth |
| Matthew Richardson | Blue | Bendigo Fight Centre |
| Matthew Ryan | White | Gracie Barra Shellharbour |
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