DCA may refer to:

Computers

Document Content Architecture Document Content Architecture, or DCA for short, is a standard developed by IBM for text documents in the early 1980s. DCA was used on Mainframe computer, mainframe and IBM i systems and formed the basis of DisplayWrite's file format. DCA was late ...

, an IBM document standard *

Dynamic Channel Allocation In radio resource management for wireless and cellular networks, channel allocation schemes allocate bandwidth and communication channels to base stations, access points and terminal equipment. The objective is to achieve maximum system spectral ...

/Assignment, in wireless networks * DTS Coherent Acoustics in

DTS (sound system) DTS, Inc. (originally Digital Theater Systems) is an American company. DTS company makes multichannel audio technologies for film and video. Based in Calabasas, California, the company introduced its DTS technology in 1993 as a competitor to Dol ...

Government

California Department of Consumer Affairs The California Department of Consumer Affairs (DCA) is a department within the California Business, Consumer Services, and Housing Agency. DCA's stated mission is to serve the interests of California's consumers by ensuring a standard of profess ...

Department for Constitutional Affairs The Department for Constitutional Affairs (DCA) was a United Kingdom government department. Its creation was announced on 12 June 2003; it took over the functions of the Lord Chancellor's Department. On 28 March 2007 it was announced that the ...

of the UK government, 2003-2007 *

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

Department of Civil Aviation (Thailand) The Department of Civil Aviation (DCA; ) was a government department of Thailand from 2009 to 2015. Founded in 1933 as a bureau under the Ministry of Commerce's Department of Transport, it was elevated to department status under the new Ministry of ...

* Namibia Directorate of Civil Aviation

Military

* Agreement on Defense Cooperation between the Czech Republic and the United States of America, known as the Defense Cooperation Agreement *

Agreement on Defense Cooperation between Finland and the United States of America The Defense Cooperation Agreement (DCA) is a bilateral treaty between Finland and the United States on military cooperation and their mutual obligations as NATO member states. The DCA entered into force on September 1, 2024. The United States sha ...

, known as the Defense Cooperation Agreement *

Defence Cyber Agency The Defence Cyber Agency (DCyA) is an integrated tri-services agency of the Indian Armed Forces. Headquartered in New Delhi, the agency is tasked with handling cyber security threats. The DCyA draws personnel from all three branches of the Arme ...

, a tri-service command of the Indian Armed Forces * Defense Communications Agency, former name of the US

Defense Information Systems 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. It is composed of military, federal civilians, and contractors. D ...

* Defensive counter air (''Défense contre les aéronefs''), French term for air defense * Deputy Commandant for Aviation, principal advisor on all aviation matters in the United States Marine Corps * Dual-capable aircraft, used in

nuclear sharing Nuclear sharing is a concept in NATO and Russia's policies of nuclear deterrence, which allows member countries without nuclear weapons of their own to participate in the planning, training, and, in extremis, the use of nuclear weapons. In parti ...

Companies and other organizations

* Christian Democracy for Autonomies, a former political party in Italy * DCA Design, a product design and development company based in Warwick, England * Digital Communications Associates, an American company * Distributors Corporation of America, American film distribution company (1952-1959) *

Diversity Council Australia Diversity Council Australia (DCA), formerly the Council for Equal Employment Opportunity, is an independent not-for-profit peak body for the promotion of diversity and inclusion in the workplace, funded mainly by membership fees, sponsorships an ...

, an Australian independent not-for-profit, promoting diversity and inclusion in the workplace *

Diyanet Center of America Diyanet Center of America (DCA) is a non-profit organization funded by the Government of Turkey, Turkish government that is based in Seabrook, Maryland, serving the needs of the Muslim community in the Washington metropolitan area. The center hold ...

, a non-profit center funded by the Turkish Government in Lanham, Maryland, US *

Drum Corps Associates Drum Corps Associates (DCA) was a governing body for modern all-age and senior drum and bugle corps (modern), drum and bugle corps in North America. Its responsibilities included sanctioning competitions, certifying adjudicators, maintaining and e ...

, a governing body of drum corps in North America *

Dublin Castle administration Dublin Castle was the centre of the government of Ireland under English and later British rule. "Dublin Castle" is used metonymically to describe British rule in Ireland. The Castle held only the executive branch of government and the Privy Cou ...

, Ireland *

Dundee Contemporary Arts Dundee Contemporary Arts (DCA) is an art centre in Dundee, Scotland, with two contemporary art galleries, a two-screen movie theater, cinema, a printmaking, print studio, a learning and public engagement programme, a shop and a café bar. The cur ...

, Scotland

Science and technology

Detrended correspondence analysis Detrended correspondence analysis (DCA) is a multivariate statistics, statistical technique widely used by ecology, ecologists to find the main factors or gradients in large, species-rich but usually sparse data matrices that typify Community (ecol ...

, a statistical technique *

Dichloroacetic acid Dichloroacetic acid (DCA), sometimes called bichloroacetic acid (BCA), is the organic compound with formula . It is an analogue of acetic acid, in which 2 of the 3 hydrogen atoms of the methyl group have been replaced by chlorine atoms. Like the ...

/ dichloroacetate, an organic acid *

Dichloroethane Dichloroethane can refer to either of two isomeric organochloride Organochlorine chemistry is concerned with the properties of organochlorine compounds, or organochlorides, organic compounds that contain one or more carbon–chlorine bonds. The c ...

s, organic solvents * Digitally-controlled amplifier * Direct coupling analysis, a method for analyzing sequence data in computational biology *

Directional component analysis Directional component analysis (DCA) is a statistical method used in climate science for identifying representative patterns of variability in space-time data-sets such as historical climate observations, weather prediction ensembles or climate ...

, a multivariate statistical technique used in the atmospheric sciences *

Drone congregation area A drone congregation area is an aerial region where honeybee drones and virgin queens gather to mate. Makeup Drone congregation areas are typically about in diameter and above ground. They have the shape of an upward-pointing cone, with t ...

, a location where bees gather to mate

Transportation

* DCA, IATA code for

Ronald Reagan Washington National Airport Ronald Reagan Washington National Airport is a public airport in Arlington County, Virginia, United States, from Washington, D.C. The closest airport to the nation's capital, it is one of two airports owned by the federal government and ope ...

, Arlington County, Virginia, US * Dutch Caribbean Airlines, former Netherlands Antilles airline

Other uses

* Debt Collection Agency, companies specialized in pursuing payments of debts * Direct corporate access, part of UK Faster Payments Service *

Disney California Adventure Disney California Adventure is a theme park at the Disneyland Resort in Anaheim, California. It is owned and operated by the Walt Disney Company through its Experiences division. The park is themed after Disney's interpretation of California ...

, Anaheim, California, US *

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 1949 book ''The Intelligent Investor''. Graham writes that dollar cos ...

, an investment strategy