ACA may refer to:

Arts and entertainment

* ''A Current Affair'' (Australian TV series), an Australian television program *

Actors Centre Australia Actors Centre Australia is a private, dramatic arts and acting school offering both certificate and degree level qualifications, based in Leichhardt, an Inner West suburb of Sydney, in New South Wales, Australia. History ACA was founded in 1987 ...

, a private dramatic arts school *

American Choreography Awards The American Choreography Awards was a ceremony and show that honored outstanding choreographers in the fields of feature film, television, music videos, and commercials. They were first known as the L.A. Dance Awards (1994–95), then as Bob Fo ...

American Composers Alliance The American Composers Alliance (ACA) is an American nonprofit composer service organization dedicated to the publishing and promoting of American contemporary classical music. Founded in 1937 by Aaron Copland, Milton Adolphus, Marion Bauer and oth ...

American Council for the Arts Americans for the Arts is a nonprofit organization whose primary focus is advancing the arts in the United States. With offices in Washington, D.C., and New York City, with more than 50 years of service. Americans for the Arts is dedicated to repr ...

, now part of Americans for the Arts * American Country Awards *

A.C.E (South Korean band) A.C.E () is a South Korean boy band formed by Beat Interactive, and co-managed with Swing Entertainment. The group consists of five members: Jun, Donghun, Wow, Kim Byeongkwan, and Chan. The group debuted on May 23, 2017, with the single "Cact ...

Business

* Alerting Communicators of America, an earlier name of American Signal Corporation *

Angel Capital Association Angel Capital Association (ACA) is the official industry alliance of over 100 of the largest angel investor groups in the United States. Since its founding in 2004, it has played a significant role in bringing together the previously separate angel ...

* 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 Following the termination of hostilities in World War II, the Allies were in control of the defeated Axis countries. Anticipating the defeat of Germany and Japan, they had already set up the European Advisory Commission and a proposed Far Easter ...

for Austria * Anti-Corruption Agency, a Malaysian government agency * Australian Coal Association *

Australian Communications Authority The Australian Communications and Media Authority (ACMA) is an Australian government statutory authority within the Communications portfolio. ACMA was formed on 1 July 2005 with the merger of the Australian Broadcasting Authority and the Austr ...

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

Armed Peasant Association The Armed Peasant Association ( es, Agrupación Campesina Armada, short ACA), alternatively known as Armed Campesino Group and Armed Peasant Grouping – People's Army (ACA–EP), is a Far-left politics, far-left rebel group that takes part in the ...

(Spanish: ), also known as Armed Campesino Group, a Marxist–Leninist Paraguayan rebel group

Organizations

* Academic Cooperation Association, international body to promote cooperation in higher education, based in Brussels * Adult Children of Alcoholics, counseling and support group * Aero Club of America, US aviation group, now the National Aeronautic Association *

American Cadet Alliance The American Cadet Alliance (ACA), formerly the United States Army Cadet Corps (USAC) was founded under the name " Colonel Cody's Boy Scouts" by Captain James H. C. Smyth at the First Presbyterian Church, Manhattan, New York in 1909. The ACA ...

, former non-government group for military cadet activities *

American Chess Association The American Chess Association (ACA) was a chess organization founded in New York City in 1857. The organization organized the first major chess tournament, the First American Chess Congress, in the United States on October 6, 1857. On November 11, ...

, chess organization founded in 1857 and dissolved a few years later * American Citizens Abroad, non-profit group advocating for American expatriates * American Cryptogram Association, group for cryptographic puzzles * American Crystallographic Association, scientific society * Amputee Coalition of America, advocacy and support group * '' Analytica Chimica Acta'', scientific journal *

Anti-Communist Action Anti-Communist Action, also known as Anticom for short, is a right-wing to far-right organization based in the United States and Canada. The group has described itself as " the right's response to antifa." Anticom has espoused neo-Nazi ideology ...

, a far-right organization ** NSC-131, a neo-Nazi group * Anglican Church in America, traditionalist Anglican church body * Army Comrades Association (" Blueshirts"), Irish militant right-wing group in 1932-1933 *

Association of Canadian Archivists The Association of Canadian Archivists (ACA), established in 1975, is a national not-for-profit organization representing over 600 archivists (and those interested in archives and archivists) in Canada. With headquarters in Ottawa, the ACA's mandate ...

, professional group for Canadian historical archivists * Atheist Community of Austin, Texas non-profit group which produces ''

The Atheist Experience "The Atheist Experience" is an American live, weekly televised webcast based in Austin, Texas. Listeners are encouraged to call in to discuss the existence of God and related topics. Calls from theists are usually given priority, as the aim of t ...

'' TV program * '' Automóvil Club Argentino'', Argentina's largest automobile association

Professional associations

ACA International ACA International is a trade group located in the United States representing debt collection agencies, creditors, debt buyers, collection attorneys, and debt collection industry service providers. Founded in 1939 as the American Collectors Associ ...

, formerly the American Collectors Association *

American Callers Association The American Callers Association (ACA) is the second largest association of square dance callers in the United States. ACA is a non-profit organization with headquarters at Muscle Shoals, Alabama. ACA has members in the United States, Canada, E ...

, association of square dance callers *

American Camp Association The American Camp Association (ACA), formerly known as the American Camping Association, is a 501(c)(3) nonprofit that serves the United States. It is an association for camp owners, camp professionals and others interested in summer camps and si ...

, professional and trade association for summer (and similar) camp owners and workers *

American Chiropractic Association The American Chiropractic Association (ACA), based in Arlington, Virginia, represents doctors of chiropractic. Its mission is to inspire and empower its members to elevate the health and wellness of their communities. Purpose and mission The m ...

, professional association * Australian Counselling Association, professional association * American Counseling Association, professional association * American Correctional Association, professional and trade association for prisons and prison officials and employees *

Australasian Corrosion Association The Australasian Corrosion Association (ACA) is a non-profit membership association, headquartered in the state of Victoria, Australia and active in the Australasian region (mainly Australia and New Zealand), which disseminates information on cor ...

, Australia and New Zealand trade association *

Austrian Cockpit Association The Austrian Cockpit Association (ACA) is a professional pilot organization. ACA is the national member of IFALPA and ECA representing Austrian professional pilots. Main objective is the continuous improvement of aviation safety and security. De ...

, professional pilot organization *

American College of Apothecaries The American College of Apothecaries (ACA) is an international (United States and Canada) professional association in the field of independent community pharmacy practice. The organization offers continuing education (CE) credits for pharmacists ...

, professional and trade association for independent community pharmacists

School

* Academic Cooperation Association, international group promoting cooperation in higher education, based in Brussels *

Asunción Christian Academy The Asunción Christian Academy, (abbreviated as ACA), is an American co-educational private international Christian day school located in Asunción, Paraguay. The academy was founded in 1958 by Frank Weins and Lucy Huston and moved to its cur ...

, an American school in Paraguay

Science and technology

7-ACA 7-ACA (7-aminocephalosporanic acid) is the core chemical structure (a synthon) for the synthesis of cephalosporin antibiotics and intermediates. It can be obtained by chemoenzymatic hydrolysis of cephalosporin C. See also * 6-APA 6-APA ((+)- ...

, 7-aminocephalosporanic acid * ACA, a

codon The genetic code is the set of rules used by living cells to translate information encoded within genetic material ( DNA or RNA sequences of nucleotide triplets, or codons) into proteins. Translation is accomplished by the ribosome, which links ...

for the amino acid

threonine Threonine (symbol Thr or T) is an amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH form under biological conditions), a carboxyl group (which is in the deprotonated −COO� ...

Advisory Committee for Aeronautics The Advisory Committee for Aeronautics (ACA) was a UK agency founded on 30 April 1909, to undertake, promote, and institutionalize aeronautical research. In 1919 it was renamed the Aeronautical Research Committee, later becoming the Aeronautical ...

Anterior cerebral artery The anterior cerebral artery (ACA) is one of a pair of cerebral arteries that supplies oxygenated blood to most midline portions of the frontal lobes and superior medial parietal lobes of the brain. The two anterior cerebral arteries arise from t ...

Anti-cardiolipin antibodies Anti-cardiolipin antibodies (ACA) are antibodies often directed against cardiolipin and found in several diseases, including syphilis, antiphospholipid syndrome, livedoid vasculitis, vertebrobasilar insufficiency, Behçet's syndrome, idiopathic s ...

* Anti-centromere antibodies *

Acrodermatitis chronica atrophicans Acrodermatitis chronica atrophicans (ACA) is a skin rash indicative of the third or late stage of European Lyme borreliosis. ACA is a dermatological condition that takes a chronically progressive course and finally leads to a widespread atrop ...

* Agile Combat Aircraft, forerunner to the

British Aerospace EAP The British Aerospace EAP (standing for ''Experimental Aircraft Programme'') was a British technology demonstrator aircraft developed by aviation company British Aerospace (BAe) as a private venture. It was designed to research technologies to ...

technology demonstrator aircraft * ACA₀, an axiom system in reverse mathematics

Sport

* Adventure Cycling Association * African Cricket Association * American Canoe Association * Argentine Cricket Association *

Australian Cricketers' Association The Australian Cricketers' Association (ACA) is an organisation that represents the professional first-class cricketers of Australia, both past and present. It is not a formally registered Trade Union, but an Incorporated Association. Current adm ...

* AC Ajaccio, a French professional football team * AC Arles-Avignon, a French professional football team * Absolute Championship Akhmat, a mixed martial arts, kickboxing and Brazilian jiu-jitsu promotion based in Russia

Transport

* Air Canada, by ICAO airline designator * Antioch–Pittsburg (Amtrak station), by station code, in Antioch-Pittsburg, California *

Arctic Control Area The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenla ...

, a Canadian airspace region *

Atlantic Coast Airlines Atlantic Coast Airlines (ACA) was an airline based in the United States owned by Atlantic Coast Holdings, Inc. It operated as United Express for United Airlines and Delta Connection for Delta Air Lines. It was headquartered in the Dulles area o ...

, later Independence Air *

General Juan N. Álvarez International Airport Acapulco International Airport, officially General Juan N. Álvarez International Airport , is the main airport of Acapulco, Guerrero, Mexico, located from the city. In 2020, the airport handled 395,948 passengers, and in 2021 it handled 670,2 ...

, by IATA location identifier, in Acapulco, Guerrero, Mexico

Other uses

* aca, the ISO 639 code for the

Achawa language Achagua, or Achawa ( aca, Achawa), is an Arawakan language spoken in the Meta Department of Colombia, similar to Piapoco. It is estimated that 250 individuals speak the language, many of whom also speak Piapoco or Spanish Spanish might refer t ...

of Colombia *

Arabic chat alphabet The Arabic chat alphabet, ''Arabizi'', Franco-Arabic (), refer to the Romanized alphabets for informal Arabic dialects in which Arabic script is transcribed or encoded into a combination of Latin script and Arabic numerals. These informal chat ...