DCA may refer to:

Computers

* Document Content Architecture, an IBM document standard * Dynamic Channel Allocation/Assignment, in wireless networks * DTS Coherent Acoustics in DTS (sound system)

Military

* Defence Cyber Agency, a tri-service command of the Indian Armed Forces *

Defense Communications Agency The Defense Information Systems Agency (DISA), known as the Defense Communications Agency (DCA) until 1991, is a United States Department of Defense (DoD) combat support agency composed of military, federal civilians, and contractors. DISA prov ...

, former name of US Defense Information Systems Agency *

Defensive counter air Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...

(''Défense contre les aéronefs''), French term for air defense *

Deputy Commandant for Aviation The Deputy Commandant for Aviation (DCA) is the United States Marine Corps, United States Marine Corps' principle advisor on all aviation matters and is the spokesperson for United States Marine Corps Aviation, Marine Corps Aviation programs, r ...

, principle advisor on all aviation matters in the United States Marine Corps

Organizations

* California Department of Consumer Affairs * Department for Constitutional Affairs of the UK government, 2003-2007 *

DCA Design DCA Design International is one of the world's leading product design and development consultancies and is based in Warwick, England. The company was founded in 1960 and now employs more than 130 people. DCA specialise in many areas of product d ...

Department of Civil Aviation (Australia) The Department of Civil Aviation (also called the DCA) was an Australian government department that existed between November 1938 and November 1973. History The Department of Civil Aviation had its origins as the Civil Aviation Branch ...

* Department of Civil Aviation (Thailand) *

Digital Communications Associates Digital Communication Associates, Inc. (DCA), was a company in the computer and telecommunications industry, located in Alpharetta, Georgia, United States. Overview Digital Communications Associates was founded by John Alderman, who led the compan ...

, US company * Diyanet Center of America, Lanham, Maryland * Drum Corps Associates, a governing body of drum corps in North America * Dundee Contemporary Arts, Scotland *

Namibia Directorate of Civil Aviation The Namibia Civil Aviation Authority (NCAA), previously the Directorate of Civil Aviation (DCA), is the civil aviation authority of Namibia. It is a regulatory body of the Ministry of Works and Transport (Namibia), Ministry of Works and Transport. ...

* Christian Democracy for the Autonomies, a former political party in Italy

Science and technology

* Detrended correspondence analysis, a statistical technique * Dichloroacetic acid / dichloroacetate, an organic acid * Dichloroethanes, organic solvents *

Digitally-controlled amplifier A variable-gain (VGA) or voltage-controlled amplifier (VCA) is an electronic amplifier that varies its Gain (electronics), gain depending on a control voltage (often abbreviated CV). VCAs have many applications, including audio level compression, ...

Direct coupling analysis Direct coupling analysis or DCA is an umbrella term comprising several methods for analyzing sequence data in computational biology. The common idea of these methods is to use statistical modeling to quantify the strength of the direct relationship ...

, a method for analyzing sequence data in computational biology

Television, film, and music

* Distributors Corporation of America, American film distribution company (1952-1959)

Transportation

* Ronald Reagan Washington National Airport, Arlington County, Virginia, US, IATA code *

Dutch Caribbean Airlines Dutch Caribbean Airlines was an airline based in Curaçao, part of the Kingdom of the Netherlands. It was established in 1964 and ceased operation in 2004. The company slogan was ''Bridge to Curaçao.'' History The airline was succeeded by A ...

, former Netherlands Antilles airline

Other uses

* Direct corporate access, part of UK Faster Payments Service *

Dollar cost averaging Dollar cost averaging (DCA) is an investment strategy that aims to apply value investing principles to regular investment. The term was first coined by Benjamin Graham in his book ''The Intelligent Investor''. Graham writes that dollar cost averag ...

, an investment strategy *

Disney California Adventure Disney California Adventure Park, commonly referred to as California Adventure or by its acronym DCA, is a theme park located at the Disneyland Resort in Anaheim, California. It is owned and operated by The Walt Disney Company through its Park ...

, Anaheim, California, US * Debt Collection Agency, companies specialized in pursuing payments of debts {{disambiguation