| Acronym | Meaning |
| DEAT | Delegacia Especial de Apoio Ao Turismo (Galician: Special Delegation in Support of the Tourism; Brazil) |
| DEAT | Department of Education and Training (Australia) |
| DEAT | Department of Environmental Affairs and Tourism |
| DEAT | Direction de l'Environnement et de l'Aménagement du Territoire (French: Department of Environment and Spatial Planning) |