People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now.
| Jamison Lu | White | Nakama BJJ |
| 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 |
| 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 |
| Janet Addai-Mensah | Blue | Trinity Mixed Martial Arts |
| Jango Johnston | Grey | Legends Brazilian Jiu Jitsu Australia |
| Jango Sukjai | White | Ascend movement and bjj |
| Janice Sideroudakis | Blue | Parramatta Jiu Jitsu Academy |
Wave