ECA

ECA can stand for:

in government and government agencies:
* Bureau of Educational and Cultural Affairs, a part of the United States Department of State
* Economic Cooperation Administration, a former United States government agency
* European Chemicals Agency, an agency of the European Union
* European Court of Auditors, an institution of the European Union
* United Nations Economic Commission for Africa, a commission to encourage economic cooperation among African countries

in education:

* ACES Educational Center for the Arts, an arts school in New Haven, Connecticut, USA
* Edinburgh College of Art, an art school in Edinburgh, Scotland
* Escola de Comunicações e Artes (School of Communication And Arts), of the University of São Paulo, Brazil
* Evangelical Christian Academy, a school for missionary children in Madrid, Spain

in medicine and anatomy:
* ECA stack, a drug combination of ephedrine, caffeine, and aspirin
* External carotid artery, a major artery
* Emergency care assistant, an ambulance driver in United Kingdom

in technology:
* Electrical circuit analysis
* Embodied conversational agent, a type of embodied agent in artificial intelligence
* Event condition action, a principle to define triggers in a database

in sport:
* European Club Association, an association of European football clubs, which founded in January 2008

in miscellaneous:
* Easington Catchment Area, a group of natural gas fields in the North Sea
* Elemental Cost Analysis, a method of recording which enables the cost of a scheme to be monitored during design development. See Elemental cost planning
* Entertainment Consumers Association, an entity representing American game consumers
* Export Credit Agencies, a type of financial institution
* Eurocypria Airlines
* European Cockpit Association