DIEC
| Acronym | Definition |
|---|---|
| DIEC | Dubai International Exhibition Centre |
| DIEC | Dhahran International Exhibitions Company (Saudi Arabia) |
| DIEC | Diccionari de l'Institut d'Estudis Catalans (dictionary for Catalan language) |
| DIEC | Direction Interdiocésaine de l'Enseignement Catholique (French: Interdiocesan Directorate of Catholic Education) |
| DIEC | Defense Item Entry Control |