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.
| John Bradley | Blue | Absolute MMA |
| John Brown | Black | Australian Elite Team |
| John Bunn | Black | Movement Martial Arts |
| John Chapman | Unknown belt | INRG Martial Arts |
| John Chen | White | Cia Paulista Australia |
| JOHN CHIPPENDALE | Purple | Bushido Academy |
| John Clark | Grey | Gracie Barra St Peters Australia |
| John Clark | Purple | Northern Beaches Jiu-Jitsu Academy |
| John Crocitti | White | Nexus Jiu-Jitsu & MMA |
| John Curzon | Unknown belt | The Fight Lab Sydney |
| John Dennett | Purple | Galeb BJJ |
| John Devine | Blue | Locals Jiu Jitsu Academy |
| John Doan | Blue | Australian Submission Academy |
| John Elbiadi | Grey | Gracie Barra Hoppers Crossing |
| John Elder | White | HUIA MARTIAL ARTS |
| John Fakhoury | Grey | SJJA Hornsby |
| John Faull | Purple | LEGACY |
| John Fox Dare | Grey | Gracie Elite Australia |
| John Garcia | Blue | M9a Jiu jitsu |
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