People who have competed at Australian events. Australia only, for now.
| Sebastien Pirodon | White | Martial Arts Queensland |
| Seda Bradfield | White | Nexus Jiu-Jitsu & MMA |
| Seipepa Perese | Unknown belt | FAIRFIELD MMA |
| Sejota Heske | Black | Mach One |
| Selaimon Olomey | White | Clube de Lutas |
| Selena Lejcak | Grey | Australian Elite Team |
| Selena Nucho | Grey | Elite Martial Arts & Fitness Centre |
| Selin Fahri | Grey | Cia Paulista Australia |
| Selina Cattanach | Blue | Fusion Fight and Fitness |
| Senan Niranjan | White | Immersion MMA |
| Senith De Silva | White | Carlson Gracie Team |
| Senna De Ruyter De Wildt | Unknown belt | Lemos Brazilian Jiu-Jitsu Academy |
| Senne Riley-van Der Haas | Yellow | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Seondong Kim | Purple | Kronos BJJ |
| Sepeti Hoke | White | Team Perosh MMA |
| Sequoia Fili | White | Atlantic Grappling Team |
| Sequoia Wragg | Grey | Gracie Barra Pymble |
| Seraphine Browne | Unknown belt | CAZA BJJ Australia |
| Serena Khatib | Unknown belt | SJJA PARRAMATTA |
Wave