| Acronym | Definition |
|---|
| ECSA➣Engineering Council of South Africa |
| ECSA➣European Community Shipowners’ Associations (Belgium) |
| ECSA➣Eastern, Central and Southern Africa |
| ECSA➣Extended Common Service Area |
| ECSA➣Extended Common System Area |
| ECSA➣European Community Studies Association |
| ECSA➣Electoral Commission of South Australia |
| ECSA➣Exchange Carriers Standards Association |
| ECSA➣European Conference on Software Architecture |
| ECSA➣European Corporate Security Association (est. 2005) |
| ECSA➣European Customs Sports Association (est. 1992) |
| ECSA➣Essex County Soccer Association (Canada) |
| ECSA➣Eastern Christian School Association (New Jersey) |
| ECSA➣European Chlorinated Solvent Association |
| ECSA➣Estuarine & Coastal Sciences Association |
| ECSA➣Eastern Carolina Soccer Association |
| ECSA➣Extended Common Storage Areas (IBM and other mainframe systems) |
| ECSA➣Error-Constrained Sparse Approximation |