| Acronym | Definition |
|---|
| ECAA➣European Common Aviation Area |
| ECAA➣Electrical Contractors Association of Alberta (Canada) |
| ECAA➣E-Commerce Asia Association (consortium) |
| ECAA➣European Community Association Agreement |
| ECAA➣Egyptian Civil Aviation Authority |
| ECAA➣Essex County Archery Association (UK) |
| ECAA➣European Conference on Aluminium Alloys |
| ECAA➣Early Childhood Admissions Assessment (testing program) |
| ECAA➣Ethiopian Civil Aviation Authority (Ethiopia) |
| ECAA➣Échelle des Conduites Autoagressives (French developmental disorders) |
| ECAA➣Esophageal Cancer Awareness Association |
| ECAA➣East County Art Association (El Cajon, CA) |
| ECAA➣Echelon Corps And Above |