TWAS
| Acronym | Definition |
|---|---|
| TWAS | Third World Academy of Sciences |
| TWAS | Thickened Waste Activated Sludge |
| TWAS | Tyne and Wear Archives Service (record archiving office; UK) |
| TWAS | The Wessex Autistic Society (UK) |
| TWAS | Toronto World Arts Scene (Canadian magazine) |
| TWAS | Time Weighted Average Spread (finance) |