| 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 |