Dec

DEC, dec or Dec may refer to:

Abbreviations, initialisms, acronyms

 * December, the 12th month and final month of the year in the Julian and Gregorian calendars
 * Decade (log scale), a unit for measuring ratios on a logarithmic scale
 * Declination, a term from astronomy
 * Diethylcarbamazine, an anti-parasite drug
 * Diethyl carbonate, an organic solvent
 * Diplome d’Études Collegiales, French name for Diploma of College Studies, a college studies diploma issued in Quebec
 * Oratorical Declamation, an event in competitive debate
 * Display Energy Certificate, a UK requirement to show a certificate rating energy performance in public buildings
 * Direct energy conversion, a scheme for power extraction from nuclear fusion
 * An abbreviation for decimal, for example in ASCII charts
 * Abbreviation for decathlon, an Olympic athletics event

Organizations

 * Delaware Electric Cooperative
 * Department of Education and Communities (New South Wales), Australia
 * Department of Environment and Conservation (New South Wales), Australia
 * Department of Environment and Conservation (Western Australia), Australia
 * New York State Department of Environmental Conservation, New York, United States
 * Dheeraj and East Coast LLC, Dubai
 * Digital Equipment Corporation, a defunct computer and technology company
 * Disasters Emergency Committee, coordinates fifteen disaster relief charities in the United Kingdom
 * Distance Education Council, former body for open and distance education, see Distant Education Bureau
 * Dubai Economic Council, a policy-making body of the government of Dubai

People

 * Declan Donnelly (from Ant & Dec), a United Kingdom television presenter
 * Francis E. Dec (1926–1996), American outsider writer and lawyer

Places

 * Deč, a village in Serbia
 * Decatur Airport, Decatur, Illinois (IATA airport code DEC)
 * Derwent Entertainment Centre, an entertainment centre in Hobart, Australia
 * Doncaster Education City, a development in South Yorkshire