People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now. See Australian BJJ rankings for recorded wins by belt, state, and ruleset.
| Alex Romashov | Blue | Australian Elite Team |
| Alex Rymill | Blue | Kick Punch Submit |
| Alex Seidler | Blue | Arte Suave Brazilian Jiu Jitsu |
| Alex Severino | Unknown belt | PMA Mixed Martial Arts |
| Alex Silva José | Purple | Lemos Brazilian Jiu-Jitsu Academy |
| Alex Skene | White | Coringa Jiu-Jitsu |
| Alex Slade | White | Gracie Humaita Castle Hill Academy |
| Alex Sluiter | Blue | Academy 411 |
| Alex Solaty | White | Sydney Wrestling Academy |
| Alex Sorenson | White | LCS GYM |
| Alex Squires | Grey | Carlson Gracie Team |
| Alex Stachurski | Unknown belt | One Purpose BJJ |
| Alex Stamos | Blue | Braddah Jiu Jitsu |
| Alex Suhochev | Blue | LEGACY |
| Alex Taurins | White | Carlson Gracie Team |
| Alex Terrazas | White | High Rollers |
| Alex Thomas | White | AJA - Alavanca Jiujitsu Academy |
| Alex To | White | Cabra Kai Academy |
| Alex Trinh | White | Tsar Fight Club |
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