ACA

ACA may refer to:

• Achawa language, an Arawakan language of Colombia

Arts and entertainment

• A Current Affair, an Australian television program
• American Choreography Awards
• American Composers Alliance
• American Council for the Arts, now part of Americans for the Arts
• American Country Awards

Business

• Associate Chartered Accountant, a membership type of the Institute of Chartered Accountants of Pakistan
• Alerting Communicators of America, an earlier name of American Signal Corporation
• Angel Capital Association
• Associate Chartered Accountant, a membership type of the Institute of Chartered Accountants in England and Wales
• Astronautics Corporation of America
• Australian Coal Association

Government and politics

• Affordable Care Act, shorthand for the Patient Protection and Affordable Care Act, commonly called "Obamacare"
• Allied Commission for Austria
• Anti-Corruption Agency, a Malaysian government agency
• Australian Coal Association
• Australian Communications Authority

Historical

• Army Comrades Association, or "Blueshirts", a political organization in 1930s Ireland

Organizations

• Academic Cooperation Association, Brussels, higher education sector
• Adult Children of Alcoholics
• Aero Club of America
• American Cadet Alliance
• American Chess Association, a 19th-century organization
• American Citizens Abroad
• American Cryptogram Association
• American Crystallographic Association
• Amputee Coalition of America
• Analytica Chimica Acta, an academic journal
• Anglican Church in America
• Army Comrades Association
• Association of Canadian Archivists
• Atheist Community of Austin
• Automóvil Club Argentino

Professional associations

• ACA International, formerly the American Collectors Association
• American Callers Association
• American Camp Association
• American Chiropractic Association
• American Counseling Association
• American Correctional Association
• Austrian Cockpit Association, the Austrian member of IFALPA and ECA

School

• Academic Cooperation Association
• Asunción Christian Academy, an American school in Asunción, Paraguay

Science, medicine and technology

• 7-ACA, 7-aminocephalosporanic acid
• Advisory Committee for Aeronautics
• Anterior cerebral artery
• Anti-cardiolipin antibodies
• Anti-centromere antibodies
• Acrodermatitis chronica atrophicans
• Agile Combat Aircraft, forerunner to the British Aerospace EAP technology demonstrator aircraft

Sporting

• Adventure Cycling Association
• African Cricket Association
• American Canoe Association
• Argentine Cricket Association
• AC Ajaccio, a French professional football team
• AC Arles-Avignon, a French professional football team

Transport

• Air Canada, an airline
• Antioch–Pittsburg (Amtrak station) in California
• Arctic Control Area, a Canadian airspace region
• Atlantic Coast Airlines, later Independence Air
• General Juan N. Álvarez International Airport, Acapulco, Guerrero, Mexico