People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now.
| Sienna Dunn |
| Grey |
| Gracie Barra Carlton |
| Sienna Fletcher | Unknown belt | Blue Mountains Jiu-Jitsu Academy |
| Sienna George | Yellow | Gracie Barra Surfers Paradise |
| Sienna Gray | Unknown belt | DCA MMA |
| Sienna Grylls | Blue | XFC - Australian Top Team |
| Sienna Hodges Hammond | Grey | A+BJJ ACADEMY |
| Sienna Hookasian | Orange | Gracie Barra West Ryde |
| Sienna Kaiser | Grey | Behan Jiu Jitsu |
| Sienna Karam | White | Apex Brazilian Jiu Jitsu |
| Sienna Khalil | Black | Global Martial Arts AU |
| Sienna Lawler | White | Fight Club Jiu-Jitsu team |
| Sienna Mendoza | Grey | Australian Elite Team |
| Sienna Pellizzaro | Grey | Martial Arts Spirit |
| Sienna Regan | Yellow | VICE Jiu Jitsu |
| Sienna Roberts | Grey | SJJA Team |
| Siera Christie | Grey | Gracie Barra Carlton |
| Sierra Parker | Unknown belt | Southern Stars Taekwondo |
| Sierra Spagnol | Grey | Galeb BJJ |
| Sierra Stockton | White | Fight Club Jiu-Jitsu team |
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