DCA

DCA may refer to:

Computers

• Distributed Computing Architecture, a method of computer processing
• Document Content Architecture, an IBM document standard
• Dynamic Channel Allocation/Assignment, in wireless networks

Military

• Defense Communications Agency, former name of US Defense Information Systems Agency

Organizations

• Department for Constitutional Affairs of the UK government, 2003-2007
• Department of Civil Aviation (Thailand), the aviation authority of Thailand
• Destiny Christian Academy, a school in Oklahoma, USA
• Digital Communications Associates, former US company
• Diyanet Center of America, a non-profit organization in the Washington metropolitan area
• Donelson Christian Academy, Nashville, Tennessee, US
• Drum Corps Associates, governing drum corps body in North America
• Dundee Contemporary Arts, Scotland
• Namibia Directorate of Civil Aviation

Science and technology

• Deoxycholic acid, a bile acid
• Detrended correspondence analysis, a statistical technique
• Dichloroacetic acid / dichloroacetate, an organic acid
• Dichloroethanes, organic solvents
• Digitally-controlled amplifier

Television, film, and music

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

Transportation

• Dutch Caribbean Airlines, former Netherlands Antilles airline
• Ronald Reagan Washington National Airport, Arlington County, Virginia, US, IATA code

Other uses

• Direct corporate access, part of UK Faster ayments Service
• Dollar cost averaging, an investment strategy
• Disney California Adventure, a theme park at the Disneyland Resort in Anaheim, California