People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now.
| Romeo Di Pardo | Grey | 80/20 Brazilian Jiu-Jitsu |
| Romeo Koia | Grey | Moraes BJJ |
| Romeo Rebolledo | Grey | Australian Elite Team |
| Romeo Vracknos | White | Nexus Jiu-Jitsu & MMA |
| Romeo Wells | Yellow | SJJA Team |
| Romy Hutensky | Grey | Garage Grappling |
| Ron Cheung | Black | Pure Jiu Jitsu Southern Highlands |
| Ron Coleman | Blue | Gracie Elite Australia |
| Ron Gudilos | Unknown belt | Kumite Jiu Jitsu |
| Ronald Brear | Blue | Gracie Barra Wollongong |
| Ronald Hull | Blue | Warrior World gym - Team fightbrothers |
| Ronald Nguyen | White | Forza Jiu Jitsu |
| Ronaldo Batista Do Carmo Júnior | Blue | Melbourne Jiu -Jitsu Academy |
| Ronan Falconer | White | Iron Octopus School of Physical Culture |
| Ronan Goodall | Purple | DOMINANCE |
| Ronan Martin | Purple | Apex MMA, Muay Thai & Jiu-Jitsu |
| Ronan O'Halloran | White | Australian Elite Team |
| Ronel Younan | Blue | The Grappling Lab Prestons |
| Roni Baber | Unknown belt | Lane Cove Taekwondo |
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