People who have competed at Australian events. Australia only, for now.
| Cassie Powis | Unknown belt | Courage Training Centre |
| Cassius Appoo | Grey | Asylum MMA |
| Cassius Fakiki | Grey | Australian Elite Team |
| Cassius Franks | White | Lismore Jiu Jitsu Team |
| Cassius Osborne | Yellow | CAZA BJJ Australia |
| Catalina Myles | Grey | Gracie Barra Tuggerah |
| Cate Gambrill | White | Gracie Smeaton Grange |
| Catherine Merheb | Grey | Gracie Barra Kiama |
| Catherine Pinheiro | Grey | Gracie Barra Kingsgrove |
| Catherine Ting | White | SJJA Team |
| Catrina Wu | Yellow | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Cavalli Tarawa | Grey | Waves Martial Arts Comp Team |
| Cayden Prince | Grey | Alpha Jiu Jitsu Academy / Jean Jacques Machado Sydney |
| Caylee Spaens | Grey | SJJA Team |
| Caylum Oelsen | Grey | Base Training Centre |
| Cecilia Almeida Pavam | White | Gold Coast Brazilian Jiu-Jitsu |
| Celestina Moore | Grey | Absolute MMA |
| Celiene Chehade | Blue | DOMINANCE |
| Celina Pedzik | Blue | Martial Arts Spirit |
Wave