EC or ec may refer to:

Arts and entertainment

* EC Comics, an American publisher of comic books * ''Electric Circus'', a Canadian television program * Eric Clapton Stratocaster, signature model guitars by Fender

Businesses and organisations

Government

* Environment and Climate Change Canada, a Canadian federal government department * European Commission, the executive body of the European Union * European Council, the European Union institution comprising the college of heads of state of government * European Communities, one of the three pillars of the EU * European Community, a significant component of the European Union from 1993 to 2009, renamed European Economic Community

Transportation

* EuroCity, a train service of the European inter-city rail network * EasyJet Europe (IATA code: EC) * Avialeasing (former IATA code: EC), a cargo airline * East Coast (train operating company), a train operating company in the UK * EC, the list of aircraft registration prefixes, aircraft registration prefix for Spain

Education

* Eckerd College, US * Edinburgh College, Scotland * Erskine College, US

Other businesses and organizations

* EC Comics, a defunct comic book company * Equine Canada, Canada's national horse sport federation * Engineers Canada, a national organization that regulates the practice of engineering in Canada * Engineering Council, formerly Engineering Council UK, a regulatory authority in the UK for registration of engineers and technicians

Places

* EC postcode area, for east central London * Ecuador (ISO 3166-1 country code) * East Chicago, Indiana, a city in the US

Science and technology

Biology and medicine

* Emergency contraception * Endothelial cell * Enterochromaffin cell * Entorhinal cortex, memory center in the brain * Enzyme Commission number (EC number), used for the numerical classification of enzymes * Extracellular

Chemistry

* Ethylene carbonate, an ester and a popular solvent in lithium-ion batteries * European Community number (EC-No, or EC#), determined by the European Commission for identifying chemicals

Computing

* .ec, the country code top level domain (ccTLD) for Ecuador * Amazon Elastic Compute Cloud * Electronic cash, an electronic payment system * Evolutionary computation, computing that utilises evolution to automatically find solutions to formally defined problems * Embedded controller, a microcontroller in computers that handles various system tasks that the operating system does not handle * ExpressCard, an interface connecting peripheral devices to a computer, usually a laptop * Erasure code, in information theory

Physics

* Electrical conductivity, of a solution ** EC meter (electrical conductivity meter), measures the electrical conductivity in a solution * Edinburgh-Cape Blue Object Survey, an astronomical catalogue * Electron capture, in nuclear physics * Exacoulomb (EC), an SI unit for electric charge equal to 10¹⁸ coulomb

Other sciences

* Elliptic curve, in mathematics * Emergent cyclical theory (E-C theory), in psychology * Electronic cigarette, or e-cigarette

Other uses

* Elimination communication, a method of toilet training * Extended coverage, in insurance * Extra credit, in academia * Executive Condominium, a type of housing in Singapore * Ethiopian calendar (EC or E.C.)