| Acronym | Definition |
|---|
| QDU➣Queensland Debating Union (Australian Debating Federation; Toowong, Queensland, Australia) |
| QDU➣Quigley Down Under (film) |
| QDU➣Quantization Distortion Units |
| QDU➣Dusseldorf, Germany - Main Train Station (Airport Code) |
| QDU➣Quick Deposit Unit (banking) |