DCA

DCA may refer to:

Organizations

• Delta Connection Academy, a flight school at Orlando Sanford International Airport
• Diamond Council of America, a non-profit organization of professional jewelers
• Drum Corps Associates, the governing body for all-ages musical marching unit in North America
• Dartington College of Arts, near Totnes, Devon, South West England
• Dundee Contemporary Arts, an arts complex in Dundee, Scotland
• Donelson Christian Academy, a private christian shcool in suburban Nashville, Tennessee
• DanChurchAid, a Danish NGO
• Deaf Children Australia, a Melbourne based national charity for young deaf people
• Department of Civil Aviation (Thailand), the aviation authority of Thailand
• Destiny Christian Academy, a school in Oklahoma, USA
• Disney California Adventure Park, a theme park in Anaheim, California

Science and technology

• Dichloroethane, either of two chlorinated organic solvents
• Deoxycholic acid, a bile acid with a claimed potential in treatment of inflammations and cancer
• Detailed Configuration Accounting, a method for calculating atomic spectra
• Dichloroacetic acid / dichloroacetate, an organic compound with a claimed potential as a cancer treatment
• Potassium Dichloroacetate and Sodium Dichloroacetate, the crystals of dichloroacetic acid used in human clinical trials, see dichloroacetic acid
• Detrended correspondence analysis, a multivariate statistical technique widely used by ecologists

Computers

• Direct Chip Attach, a method of packaging chips onto the motherboard
• Distributed Computing Architecture, a method of computer processing
• Direct Connect Architecture, the I/O architecture of the Athlon 64 and Opteron microprocessors (cf NUMA)
• Document Content Architecture, an IBM document formatting code system
• DTS Coherent Acoustics, an audio format standard
• Dynamic Channel Allocation or Dynamic Channel Assignment, in wireless networks
• Data Center Automation Methodology of automating portions, or in total, tasks requiring manual intervention.

Military

• Defense Communications Agency, historical name of the Defense Information Systems Agency
• Dual-Capable Aircraft

Transportation

• Ronald Reagan Washington National Airport, IATA code DCA, an airport in Arlington County, Virginia, serving Washington, D.C.
• Dutch Caribbean Airlines, a defunct airline based in the Netherlands Antilles

Television, film, and music

• WDCA, the MyNetworkTV station in Washington, D.C.
• Death Cult Armageddon, an album by Norwegian band Dimmu Borgir

Other uses

• Dollar cost averaging, an investment strategy
• Direct Corporate Access, a same day clearing payment service that is part of the Faster Payments Service in UK