People who have competed at Australian events. Australia only, for now.
| Deniz Spahi | Unknown belt | The Agoge Brazilian Jiu-Jitsu |
| Deniz Tarim | Unknown belt | Sydney West Martial Arts |
| Deniz Uney | Unknown belt | Ying Yang Taekwondo Academy |
| Dennea Zilen Bacarro | Grey | Unite Mixed Martial Arts |
| Dennis Astakhov | Grey | Gracie Barra Menai |
| Dennis Guo | Grey | SJJA Team |
| Dennis Mazarakis | Blue | Immersion MMA |
| Dennis Reubens | White | Pure Jiu Jitsu Southern Highlands |
| Dennis Tocknell | Purple | Gracie Barra Broadbeach |
| Denny Jeon | White | Origin Mixed Martial Arts |
| Denvah Henry | White | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Denver Bell | Grey | Galeb BJJ |
| Denzaan Goh | White | Five Rings Jiu Jitsu Academy |
| Denzel Elwin | Grey | Virtue Brazilian Jiu-Jitsu Australia |
| Denzel Iakopo | Grey | Gracie Smeaton Grange |
| Denzel Joshua | Grey | GOIOERE BJJ TEAM |
| Deon Gilbert | White | Yarra Valley Brazilian Jiujitsu |
| Derby-Abdoulaye Samba | White | Wilkes Martial Arts & Fitness Academy |
| Derek Bartley | White | One Purpose BJJ |
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