EEC is an abbreviation that usually refers to the European Economic Community, the forerunner to the European Union.
It may also refer to;
- The East Erie Commercial Railroad, a shortline in Pennsylvania
- Electronic Engine Control, electronic (as opposed to hydraulic) control for engines
- Embodied Embedded Cognition, a position in cognitive science
- Embodied energy coefficient, an indicator of how much energy must be invested to mine/harvest/produce, fabricate and transport a unit of building material
- English Electric Company, which became part of The General Electric Company
- English Electric Computers, a product line of English Electric
- In histology:
- Enteroendocrine cell
- Endometrial epithelial cell (see endometrium)
- EEC Group, Engineering Enterprises Company, a civil engineering company and Steel towers manufacturer in Egypt
- Eurasian Economic Community, an institutional framework of Eurasian countries
- European Energy Community, a regulatory framework for trading energy in Europe
- Extended Error Correction, a RAM parity feature
- Extreme Elimination Chamber, a wrestling match type
- Ford EEC, an Electronic Engine Controller designed by Ford Motor Company
- East European Craton