People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now.
| Cian Quinn-O’Connor | White | Integrated MMA HQ |
| Ciana Fakiki | White | Australian Elite Team |
| Ciara Calgaret | Grey | Spektrum Martial Arts |
| Ciara Okazima | Grey | Equinox Academy |
| Ciaran Dunne | Blue | Gracie Elite Australia |
| Ciaran Flynn | White | Fight Club Jiu-Jitsu team |
| Ciaran Hayes | Grey | SJJA Team |
| Ciaran O'Dwyer | Unknown belt | Gracie Jiu Jitsu Footscray |
| Ciaran OConnor | White | GRACIE HUMAITA AUSTRALIA |
| Ciaron Murphy | Purple | MYBJJ TEAM |
| Cid Nascimento | Black | Grappling Bros / GFTeam |
| Cillian Kirwan-Chong | White | Australian Elite Team |
| Cillian Simpson | White | Primal Mixed Martial Arts (Sunbury) |
| Cindy Cespedes Naranjo | White | Ultimate Jiu Jitsu |
| Cindy Du | Blue | Gracie Elite Australia |
| Cindy Houlihan | White | Dark Carnival |
| Cindy Sykes | White | Infinity Brazilian Jiu JItsu Australia |
| Cindy Van | Purple | Arruda BJJ |
| Ciraj Alazzam | White | Bankstown Martial Arts |
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