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.
| Oliver Iuvale | White | Integrated MMA HQ |
| Oliver Jackson | Grey | SJJA Team |
| Oliver James Wallace | Yellow | Gracie Barra Townsville |
| Oliver Jantos | Grey | GRACIE BARRA CARINGBAH |
| Oliver Jaques | White | Elite BJJ Coaching |
| Oliver Jones | Grey | SJJA Team |
| Oliver Keightley | Unknown belt | Full Metal Jiu Jitsu / ATOS Burleigh Heads |
| Oliver Kerwin | Grey | SJJA Bulimba |
| Oliver Kissin | White | Balance BJJ |
| Oliver Korthout | Purple | Gracie Barra Pymble |
| Oliver Kupsch | Grey | SJJA Team |
| Oliver Kupsch | White | SJJA Team |
| Oliver Kusic | White | The Jiu-Jitsu Hub |
| Oliver Lamont | Grey | Yarra MMA |
| Oliver Larsen | White | Fight Club Jiu-Jitsu team |
| Oliver Leader | Grey | Gracie Barra Hunter Valley |
| Oliver Linay Albuquerque | Grey | GARAGE JIU-JITSU |
| Oliver Linssen | White | LEGACY |
| Oliver Marion | Grey | AMMA GYM BRAZILIAN JIU JITSU |
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