IEA

IEA may refer to:

Polities

 * the country of Afghanistan, officially named as the Islamic Emirate of Afghanistan since August 2021
 * Islamic Emirate of Afghanistan (1996–2001), a previous Taliban-led state that ruled most of Afghanistan from 1996 to 2001

Education

 * Instituto Español de Andorra, an international school in Spain
 * International Association for the Evaluation of Educational Achievement

Policy bodies

 * Institute of International and European Affairs (formerly Institute of European Affairs), an Irish think tank
 * International Energy Agency, an intergovernmental organisation based in Paris

Science and medicine

 * Institute of Ethnology and Anthropology, Russia
 * International Epidemiological Association
 * International Ergonomics Association
 * Involuntary Emergency Admission, in psychiatry

Advocacy organisations

 * Institute of Economic Affairs, a right-wing British lobby group

Others

 * Indian Evidence Act, 1872, former evidence act in India