People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now.
| Jango Johnston | Grey | Legends Brazilian Jiu Jitsu Australia |
| Jango Sukjai | White | Ascend movement and bjj |
| Janice Sideroudakis | Blue | Parramatta Jiu Jitsu Academy |
| Janna Fortaleza | White | John Donehue Jiu Jitsu |
| Janna Martin | White | Fight Club Jiu-Jitsu team |
| Janna Tuhua | Blue | Galeb BJJ |
| Janna Weeks | Blue | Cris Hisa BJJ Team |
| Jannah Dib | Grey | Team Lead |
| Jannah Imi Dib | White | IFA Martial Arts |
| Jannali Davidson | White | Galeb BJJ |
| Jaos Jarden | Blue | GroundForce Martial Arts Academy |
| Jap Asankh Singh Dhaliwal | Grey | Team Sparta |
| Japleen Kaur | Unknown belt | HTC |
| Jaque Olguera | Yellow | GRACIE HUMAITA AUSTRALIA |
| Jardine Ruben | White | Gracie Jiu-jitsu Camira |
| Jared Atkins | White | TFC - The Fight Centre |
| Jared Carlos Monilla | Grey | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Jared Dotter | White | Clube de Lutas |
| Jared Frampton | Purple | Will Machado - Comp Team |
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