EAC may refer to:

Education Eastern Arizona College, in Thatcher, Arizona, United States Emilio Aguinaldo College, in Manila, Philippines

Government and politics East African Community, a trade bloc East Asian Community, a proposed trade bloc Election Assistance Commission of the Government of the United States Electoral Affairs Commission of Hong Kong Electricity Authority of Cambodia Electricity Authority of Cyprus Environmental audit committee of the Parliament of the United Kingdom European Advisory Commission, a commission arranged at the 1943 Moscow Conference between the Allies of World War II European Asylum Curriculum, a European Union project in the field of asylum

Medicine Ehrlich ascites carcinoma Erythema annulare centrifugum Esophageal adenocarcinoma External auditory canal

Military Eastern Air Command (India) Echelon above corps RCAF Eastern Air Command, active during World War II

Sport European Archery Championships European Athletics Championships FAI European Aerobatic Championships

Technology EAC-C2C, a submarine telecommunications cable system Enhanced Audio Codec Exact Audio Copy, a CD ripping software package Encoded Archival Context, an XML-based standard Extended Access Control, a security feature for e-passports Easy Anti-Cheat, a security program for online games

Organizations and companies EA Canada, a video game developer East Asiatic Company, a Danish transport company Ecology Action Centre, a Canadian environmental organization Editors' Association of Canada, a professional organization Energy Action Coalition, now Power Shift Network, a North American youth environmental organization Euro-Atlantic Centre, a Slovak NGO in the field of foreign and security policies Europae Archaeologiae Consilium, an association of archaeological heritage authorities European Aviation Air Charter, a defunct British airline European Air Charter (Bulgarian airline), a Bulgarian charter airline European Arboricultural Council, an international forestry agency European Astronaut Centre, a training site of the European Space Agency in Cologne, Germany European Astronaut Corps, a unit of the European Space Agency

Other uses East Australian Current Eastern Agricultural Complex, indigenous plants cultivated in the precontact southeastern United States Eko Atlantic, a planned city in Lagos State, Nigeria Equivalent annual cost Euro-American Challenge, an American football game Eurasian Conformity mark, a certification mark valid in post-Soviet countries that belong to the Eurasian Customs Union Everyone's a Critic, a defunct film community website Estimate at completion, in earned value management Extend Air Cartridge, a make or type of absorbent canister for a rebreather