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.
| Jamiroquai Nikora | Unknown belt | PMA Mixed Martial Arts |
| Jamison Lu | White | Nakama BJJ |
| Jan Chrominski | White | Armour Brazilian Jiujitsu |
| Jan Djemal | White | Gracie Barra Townsville |
| Jan Malski | White | FrancisJiuJitsu |
| Jan Pierry Ferreira De Freitas Barros | Blue | Gracie Botany |
| Jan Teodoro | Unknown belt | Kumite Jiu Jitsu |
| Jana Chan | Black | Lane Cove Taekwondo |
| Jana Knezevic | Unknown belt | Mitrevski Martial Arts Academy |
| Jana Maroungas | White | Integrated Combat Centre - Peakhurst |
| Janam Bhavsar | Unknown belt | Clube de Lutas |
| Janardhan Jolivet | White | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Janaya Fadel | White | FAIRFIELD MMA |
| Jandale Garcines | White | Arte Suave Brazilian Jiu Jitsu |
| Jane Hutchinson | Purple | Team Moreira No Gi Brazilian Jiu Jitsu |
| Jane Li | Blue | A+BJJ ACADEMY |
| Jane Purcell | White | Goulburn Martial Arts Academy |
| Jane Van Duinen | Blue | Porterhouse jiu-jitsu and mma |
| Janelle Blair | White | Empire Martial Arts |
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