ABC are the first three letters of the Latin script known as the

alphabet An alphabet is a standardized set of basic written graphemes (called letters) that represent the phonemes of certain spoken languages. Not all writing systems represent language in this way; in a syllabary, each character represents a syll ...

. ABC or abc may also refer to:

Arts, entertainment, and media

Broadcasting

American Broadcasting Company The American Broadcasting Company (ABC) is an American commercial broadcast television network. It is the flagship property of the ABC Entertainment Group division of The Walt Disney Company. The network is headquartered in Burbank, Cali ...

, a commercial U.S. TV broadcaster **

Disney–ABC Television Group Disney General Entertainment Content, doing business as Walt Disney Television, is an American entertainment company that oversees television content and assets owned and operated by The Walt Disney Company. Forming the company's General Enterta ...

, the former name of the parent organization of ABC *

Australian Broadcasting Corporation The Australian Broadcasting Corporation (ABC) is the national broadcaster of Australia. It is principally funded by direct grants from the Australian Government and is administered by a government-appointed board. The ABC is a publicly-own ...

, one of the national publicly funded broadcasters of Australia **

ABC Television (Australian TV network) ABC Television is the general name for the national television services of the Australian Broadcasting Corporation (ABC). Until an organisational restructure in 2017/2018, ABC Television was also the name of a division of the ABC. The name was ...

, the national television network of the Australian Broadcasting Corporation *** ABC TV (Australian TV channel), the flagship TV station of the Australian Broadcasting Corporation ***

ABC Canberra (TV station) ABC Television in the ACT comprises national and local programming on the ABC television network in the Australian Capital Territory, which includes the capital city of Australia, Canberra, and broadcasts on a number of channels under the ABC ...

, Canberra, and other ABC TV local stations in state capitals ***

ABC Australia (Southeast Asian TV channel) ABC Australia, formerly Australia Television International (or just Australia Television), ABC Asia Pacific, Australia Network and Australia Plus, is an Australian pay television channel, launched in 1993 and operated by the Australian Broadca ...

, an international pay TV channel *

ABC Radio (disambiguation) ABC Radio may refer to: Australia * History of ABC Radio (Australia), the division of the Australian Broadcasting Corporation (ABC) responsible for: ** ABC Classic, a classical music radio station ** ABC Classic 2, an un-presented streaming-only c ...

, various radio stations including the American and Australian ABCs *

Associated Broadcasting Corporation TV5 Network Inc., commonly known as TV5, is a Philippine media company based in Mandaluyong, with its alternate studios located in Novaliches, Quezon City. It is primarily involved in radio and television broadcasting, with subsidiaries and ...

, one of the former names of TV5 Network, Inc., a Philippine television company ** ABC-5, the former name of TV5 (Philippines), a Philippine free-to-air network * ''ABC'' (Swedish TV programme), a former Swedish regional news programme *

ABC Weekend TV ABC Weekend TV was the popular name of the British broadcaster ABC Television Limited, which provided the weekend service in the Midlands and Northern England regions of the Independent Television (ITV) network from 1956 to 1968. It was one ...

, a former British television company * Asahi Broadcasting Corporation, a Japanese commercial television and radio station * Associated Broadcasting Company, a former name of

Associated Television Associated Television was the original name of the British broadcaster ATV, part of the Independent Television (ITV) network. It provided a service to London at weekends from 1955 to 1968, to the Midlands on weekdays from 1956 to 1968, and ...

, a British television company

Music

Albums

* ''ABC'' (Jin album), a 2007 album by rapper MC Jin * ''ABC'' (Kreidler album), a 2014 album by Kreidler * ''ABC'' (The Jackson 5 album), a 1970 album by The Jackson 5

Groups

* A.B.C., the former name of Japanese boy band A.B.C-Z *

ABC (band) ABC are an English pop band formed in Sheffield in 1980. Their classic line-up consisted of lead singer Martin Fry, guitarist and keyboardist Mark White, saxophonist Stephen Singleton and drummer David Palmer. Developed from an earlier band, ...

, an English pop band *

Acid Black Cherry Acid Black Cherry (abbreviated as ABC) is the solo project of the former lead vocalist of Janne Da Arc, Yasu. The group was formed after Janne Da Arc announced their indefinite hiatus. Information Acid Black Cherry is the solo project of Yasunor ...

, a Japanese rock band * Alien Beat Club, a Danish pop and R&B band * Another Bad Creation, an American hip hop and new jack swing group

Labels

* ABC Classics, an Australian record label * ABC Records, an American record label

Other uses in music

* ABC song (disambiguation), various songs with this title * ABC notation, a musical notation language * O₂ ABC Glasgow, a music venue

Periodicals

* ''ABC'' (magazine), an Italian magazine published between 1960 and 1977 * ''ABC'' (newspaper), a Spanish daily newspaper founded in 1903 * ''ABC'' (Monterrey newspaper), a Mexican newspaper founded in 1985 * '' ABC Color'', a Paraguayan newspaper founded in 1967

Other uses in arts, entertainment, and media

ABC Cinemas ABC Cinemas (Associated British Cinemas) was a cinema chain in the United Kingdom. Originally a wholly owned subsidiary of Associated British Picture Corporation (ABPC), it operated between the 1930s and the 1980s. The brand name was reused in ...

, a UK cinema chain *

Alphabet book An alphabet book is a type of children's book giving basic instruction in an alphabet. Intended for young children, alphabet books commonly use pictures, simple language and alliteration to aid language learning. Alphabet books are published ...

, any of several children's books depicting the alphabet * ''

America's Best Comics America's Best Comics (ABC) is a comic book publishing brand. It was set up by Alan Moore in 1999 as an imprint of WildStorm, an idea proposed to Moore by WildStorm founder Jim Lee when it was still under Image Comics. History ''America's Best ...

'', an imprint of DC Comics

Brands and enterprises

Companies

Financial

Agricultural Bank of China Agricultural Bank of China (ABC), also known as AgBank, is one of the " Big Four" banks in China. It was founded on 10 July 1951, and has its headquarters in Dongcheng District, Beijing. It has branches throughout mainland China, Hong Kong, ...

, a bank in the People's Republic of China *

Arab Banking Corporation Arab Banking Corporation (also called Bank ABC) is an international bank with headquarters in the Diplomatic Area of Manama, in Bahrain. It was incorporated as a joint stock company in 1980 through a special decree by the Amir of Bahrain. It obta ...

, an international bank headquartered in Bahrain

Food and beverage

ABC (food) PT Heinz ABC Indonesia is an Indonesia-based food and drink subsidiary of Kraft Heinz, based in Jakarta, and manufactures sauces, condiments, juices and syrups. ABC brand was previously owned by PT ABC Central Food Industry, a company that was bou ...

, an Indonesian-based food division of the H. J. Heinz Company *

Aerated Bread Company The Aerated Bread Company Ltd (A.B.C.) was a British company founded and headquartered in London. Although it is often remembered as running a large chain of tea rooms in Britain and other parts of the world, it was originally established in 1 ...

, a British bakery and tea-room chain *

Appalachian Brewing Company The Appalachian Brewing Company, commonly known as ABC, is an American brewery in Harrisburg, Pennsylvania. It was founded in January 1997. Appalachian also operates pubs in Gettysburg, Lititz, Mechanicsburg and Shippensburg. The logo featur ...

, an American brewery

Transport

ABC (1906 automobile) The ABC was an American high wheeler automobile built by Albert Bledsoe Cole in St. Louis, Missouri, USA, from 1905 to 1910. Known as the ''Autobuggy'' from 1906 to 1908, it was billed as "the cheapest high-grade car in America", and was avail ...

, an American car *

ABC (1920 automobile) The ABC was an English car manufactured between 1920 and 1929 by ABC Motors. It was a light car (305 kg), powered by a 1203 cc flat-twin, air-cooled engine designed by Granville Bradshaw (the man who was also responsible for the ABC ...

, an English car * ABC (1922 automobile), a planned American car *

ABC Motors ABC Motors Limited ("All British (Engine) Company") of Hersham, Surrey, England was a manufacturer of cars, aircraft, motor scooters, and engines for road and air. Established by Ronald Charteris in Hersham, Surrey in 1912, its chief designer ...

, an English manufacturer of aircraft, aero engines and cars * ''

ABC Rail Guide The ''ABC Rail Guide'', first published in 1853 as ''The ABC or Alphabetical Railway Guide'', was a monthly railway timetable guide to the United Kingdom that was organised on an alphabetical basis that made it easier to use than its competi ...

'', British railway guide published between 1853 and 2007 *

ABC motorcycles ABC motorcycles was a British motorcycle manufacturer established in 1914 by Ronald Charteris in London. Several British motorcycle firms started up with the name "ABC", including Sopwith. The All British Engine Company Ltd. of London was foun ...

, a British motorcycle manufacturer

Other companies

ABC Learning ABC Learning was an Australian company that was once the world's largest provider of early childhood education services. It was listed on the Australian Securities Exchange with its market capitalisation reaching A$2.5 billion in March 2006. Th ...

, a former Australian childcare business *

ABC Stores ABC Stores is a chain of convenience stores based in Honolulu. The chain operates 73 stores, 57 of which are located in the state of Hawaii, with the remaining locations in the Mariana Islands and Las Vegas and Guam. The company now generates m ...

, a chain of convenience stores in Hawaii * Aircraft Builders Council, a provider of aviation products liability insurance * Anglo Belgian Corporation, a diesel engine manufacturer *

Audit Bureau of Circulations (disambiguation) An Audit Bureau of Circulations is a private organization that provides industry-agreed standards for media brand measurement of print publications and other media outlets in a given country. The International Federation of Audit Bureaux of Circulat ...

, publication circulation auditing companies **

Audit Bureau of Circulations (India) The Audit Bureau of Circulations (ABC) of India is a non-profit circulation-auditing organisation. It certifies and audits the circulations of major publications, including newspapers and magazines in India. ABC is a voluntary organisation i ...

, a non-profit circulation-auditing organisation **

Audit Bureau of Circulations An Audit Bureau of Circulations is a private organization that provides industry-agreed standards for media brand measurement of print publications and other media outlets in a given country. The International Federation of Audit Bureaux of Circula ...

, former name for the North American non-profit industry organization Alliance for Audited Media **

Audit Bureau of Circulations (UK) The Audit Bureau of Circulations (ABC) is a non-profit organisation owned and developed by the media industry. ABC delivers industry-agreed standards for media brand measurement of print publications, digital channels and events. The company ...

, a non-profit organisation

Mathematics

ABC formula In algebra, a quadratic equation () is any equation that can be rearranged in standard form as ax^2 + bx + c = 0\,, where represents an unknown value, and , , and represent known numbers, where . (If and then the equation is linear, not quadr ...

Approximate Bayesian computation Approximate Bayesian computation (ABC) constitutes a class of computational methods rooted in Bayesian statistics that can be used to estimate the posterior distributions of model parameters. In all model-based statistical inference, the like ...

, a family of statistical techniques * ''abc'' conjecture, a concept in number theory

Organizations

Political organizations and unions

ABC (Cuba) The ABC was a Cuban political organization founded in 1931 in opposition to the government of Gerardo Machado. It used a hierarchy of clandestine cells, in which each member would oversee a cell on the next level. The first cell was labeled A; ...

, Cuban political organization 1931–1952, named after the system for labeling its clandestine cells *

All Basotho Convention The All Basotho Convention (ABC; ) is a political party in Lesotho. The party was formed in October 2006 and founded by Tom Thabane, a former minister in the Lesotho Congress for Democracy (LCD) led by the government of Prime Minister Pakalitha ...

, a political party in Lesotho * Alliance for Barangay Concerns, a political party in the Philippines * American Bakery and Confectionery Workers' International Union, a predecessor to the contemporary Bakery, Confectionery, Tobacco Workers and Grain Millers' International Union * Americans Battling Communism, an anti-communist organization founded in 1947 *

Anarchist Black Cross The Anarchist Black Cross (ABC), formerly the Anarchist Red Cross, is an anarchist support organization. The group is notable for its efforts at providing prisoners with political literature, but it also organizes material and legal support for c ...

, an anarchist support organization * Anything But Conservative, a 2008 Canadian political campaign *

Association of Barangay Captains The Liga ng mga Barangay sa Pilipinas (League of Barangays in the Philippines) and the Asosasyon ng mga Kapitan ng Barangay (Association of Barangay Captains) or ABC are formal organizations of all the barangays in the Philippines. Presently, al ...

, former name for an organization of all the barangays (villages) in the Philippines, now known as the League of Barangays in the Philippines *

Association of British Counties The Association of British Counties (ABC) is a non-party-political society formed in 1989 by television personality Russell Grant to promote the historic counties of the United Kingdom. It argues that the historic counties are an important part ...

, a non-party-political society

Religious organizations

American Baptist Convention The American Baptist Churches USA (ABCUSA) is a mainline/evangelical Baptist Christian denomination within the United States. The denomination maintains headquarters in Valley Forge, Pennsylvania. The organization is usually considered mainli ...

, former name of American Baptist Churches USA *

Association of Baptist Churches in Ireland The Association of Baptist Churches in Ireland (ABC, ABCi and ABCI) is a Baptist Christian denomination based in Ireland. It is a group of 117 autonomous Baptist churches working together in fellowship and evangelism, training and caring minis ...

, in Ireland and the United Kingdom

Sports organizations

ABC Futebol Clube ABC Futebol Clube, commonly referred to as ABC, is a Brazilian professional club based in Natal, Rio Grande do Norte founded on 29 June 1915. It competes in the Campeonato Brasileiro Série B, the second tier of Brazilian football, as well as i ...

, a football (soccer) club based in Natal, Rio Grande do Norte, Brazil * American Bowling Congress, which merged in 2005 with other bowling organizations to form the United States Bowling Congress *

Association of Boxing Commissions The Association of Boxing Commissions (ABC) is a North American not-for-profit professional boxing and mixed martial arts (MMA) organization that organizes contests and record-keeping. It is governed by delegates of state, provincial, and tribal at ...

, a North American not-for-profit professional boxing and mixed martial arts organization *

Indianapolis ABCs The Indianapolis ABCs were a Negro league baseball team that played both as an independent club and as a charter member of the first Negro National League (NNL). They claimed the western championship of black baseball in 1915 and 1916, and fini ...

, a 1900s Negro league baseball team

Other organizations

Academia Británica Cuscatleca The Academia Británica Cuscatleca (ABC) is an established and highly regarded international bilingual school in El Salvador. It is a community of some 1300 students and is fully accredited by Council of International Schools (CIS), the Interna ...

, a school in Santa Tecla, El Salvador *

Accessible Books Consortium The Accessible Books Consortium (ABC) is a public-private partnership which was launched in 2014 by the World Intellectual Property Organization. The ABC was created with the intent of being "one possible initiative, amongst others, to implement t ...

, a subunit of the World Intellectual Property Organization *

Afrikan Black Coalition The Afrikan Black Coalition (ABC) are a group of student organizations for black students at University of California schools, formed to unite and solve issues concerning academic policy, campus social atmosphere, and matriculation of black stud ...

, a University of California student organization *

American Bird Conservancy American Bird Conservancy (ABC) is a non-profit membership organization with the mission of conserving wild birds and their habitats throughout the Americas. Its focus is on threats to birds in the Western Hemisphere – threats which include ov ...

, a non-profit membership organization *

Association of Black Cardiologists The Association of Black Cardiologists (ABC) is an organization founded to bring special attention to the adverse impact of cardiovascular disease on African Americans. History The ABC was founded in 1974 by Richard Allen Williams, in associat ...

, a North American non-profit *

Australian Bird Count The Australian Bird Count (ABC) was a project of the Royal Australasian Ornithologists Union (RAOU). Following the first and successful Atlas of Australian Birds project, which led to the publication of a book on the distribution of Australian bir ...

, a project of the Royal Australasian Ornithologists Union *

Virginia Alcoholic Beverage Control Authority The Virginia Alcoholic Beverage Control Authority (Virginia ABC, or previously known as the Virginia Department of Alcoholic Beverage Control) is one of the eleven public safety agencies under the Secretariat of Public Safety and Homeland Securit ...

, public safety agency

Places

ABC countries The ABC countries, or ABC powers, are the South American countries of Argentina, Brazil, and Chile, seen as the three most powerful, influential and wealthiest countries in South America. The term was mostly used in the first half of the 20t ...

, Argentina, Brazil, and Chile * ABC Islands (Alaska), Admiralty Island, Baranof Island, and Chichagof Island *

ABC islands (Leeward Antilles) The ABC islands is the physical group of Aruba, Bonaire, and Curaçao, the three westernmost islands of the Leeward Antilles in the Caribbean Sea. These have a shared political history and a status of Dutch underlying ownership, since the Ang ...

, Aruba, Bonaire, and Curaçao * ABC Region, an industrial area outside of São Paulo, Brazil *

Albacete Airport Albacete Airport is an airport operated by Aena located about south of the city of Albacete, the capital of the province of Albacete in Castile-La Mancha, Spain. It shares the runway and some facilities with Los Llanos Air Base, operated by t ...

, a joint civilian/military airport serving Albacete, Spain (IATA: ABC) *

Altnabreac railway station , symbol_location = gb , symbol = rail , image = Altnabreac Station (1) (geograph 2382619).jpg , caption = Altnabreac railway station , borough = Altnabreac, Highland , country = Scotland , coordinates = , grid_name = Grid reference , ...

, Scotland, by National Rail code *

Appa Balwant Chowk Appa Balwant Chowk (also known as A.B.C.) is a popular crossroads in the Shaniwar Peth neighborhood of Pune, India that is particularly noted for the concentration of bookshops in the area. It is also the site of the 15th century Tambdi Joges ...

, area of Pune, India, noted for its bookshops

Science and technology

Biology and medicine

* Abacavir, an antiretroviral drug used to treat HIV/AIDS *

ABC (medicine) ABC and its variations are initialism mnemonics for essential steps used by both medical professionals and lay persons (such as first aiders) when dealing with a patient. In its original form it stands for ''Airway'', ''Breathing,'' and '' Circu ...

, a mnemonic for "Airway, Breathing, Circulation" *

ABC model of flower development The ABC model of flower development is a scientific model of the process by which flowering plants produce a pattern of gene expression in meristems that leads to the appearance of an organ oriented towards sexual reproduction, a flower. There ...

, a genetic model *

Abortion–breast cancer hypothesis The abortion–breast cancer hypothesis posits that having an induced abortion can increase the risk of getting breast cancer. This hypothesis is at odds with mainstream scientific opinion and is rejected by major medical professional organizatio ...

, a posited connection between breast cancer and abortion * Alien Big Cat, large feline outside its indigenous range *

Aneurysmal bone cyst Aneurysmal bone cyst (ABC) is a non-cancerous bone tumor composed of multiple varying sizes of spaces in a bone which are filled with blood. The term is a misnomer, as the lesion is neither an aneurysm nor a cyst. It generally presents with pai ...

, a kind of lesion *

ATP-binding cassette transporter The ATP synthase, ATP-binding cassette transporters (ABC transporters) are a transport system superfamily that is one of the largest and possibly one of the oldest gene family, gene families. It is represented in all extant taxon, extant Phylum ...

, a transmembrane protein

Computing

Hardware

* ABC, a line of computers by

Dataindustrier AB Dataindustrier AB (literal translation: computer industries shareholding company) or DIAB was a Swedish computer engineering and manufacturing firm, founded in 1970 by Lars Karlsson and active in the 1970s through 1990s. The company's first produc ...

* Acorn Business Computer, a series of microcomputers announced at the end of 1983 by the British company Acorn Computers * Atanasoff–Berry computer, an early electronic digital computer

File formats

Other uses in computing

* ABC (computer virus), a memory-resident, file-infecting computer virus *

ABC (programming language) ABC is an imperative general-purpose programming language and integrated development environment (IDE) developed at Centrum Wiskunde & Informatica (CWI), Netherlands by Leo Geurts, Lambert Meertens, and Steven Pemberton. It is interactive, struc ...

, a programming language and environment * ABC (stream cipher), a stream cipher algorithm *

Abstract base class In object-oriented programming, a class is an extensible program-code-template for creating objects, providing initial values for state (member variables) and implementations of behavior (member functions or methods). In many languages, the class n ...

, a programming language concept *

Artificial bee colony algorithm In computer science and operations research, the artificial bee colony algorithm (ABC) is an optimization algorithm based on the intelligent foraging behaviour of honey bee swarm, proposed by Derviş Karaboğa (Erciyes University) in 2005. Alg ...

, a search algorithm

Economics

ABC analysis In materials management, ''ABC analysis'' is an inventory categorisation technique. ABC analysis divides an inventory into three categories—"A items" with very tight control and accurate records, "B items" with less tightly controlled and good re ...

, an inventory categorization technique *

Activity-based costing Activity-based costing (ABC) is a costing method that identifies activities in an organization and assigns the cost of each activity to all products and services according to the actual consumption by each. Therefore, this model assigns more in ...

, an accounting method *

Assignment for the benefit of creditors A general assignment or assignment is a concept in bankruptcy law in which an insolvent entity's assets are assigned to someone as an alternative to a bankruptcy. One form is an "assignment for the benefit of creditors", abbreviated ABC or AFBC ...

, a concept in bankruptcy law

Psychology

*ABC data collection, a descriptive functional behavior assessment method in

applied behavior analysis Applied behavior analysis (ABA), also called behavioral engineering, is a psychological intervention that applies empirical approaches based upon the principles of respondent and operant conditioning to change behavior of social significanc ...

* Affective-behavioral-cognitive model, an attitude component model

Transportation

Active Body Control Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe electronically controlled hydropneumatic suspension. This suspension combines a high level of ride quality with control of the vehicle body motions, and therefore vi ...

, a type of automobile suspension technology *

Automatic Buffer Couplers A coupling (or a coupler) is a mechanism typically placed at each end of a rolling stock, railway vehicle that connects them together to form a train. A variety of coupler types have been developed over the course of railway history. Key issues ...

, a type of railway couplers

Other uses in science and technology

* ABC dry chemical, a fire extinguishing agent * ABC weapon, a weapon of mass destruction *

Accelerated bridge construction Rapid bridge replacement or accelerated bridge construction (ABC) is a technique that allows bridges to be replaced with minimum disruption to traffic. The replacement bridge is constructed on a site near the bridge to be replaced. When it is comp ...

, a technique for building bridges * Aerial bundled cable, for power lines *

Airborne Cigar Airborne Cigar, or ABC for short, was a World War II electronic countermeasure (ECM) system developed by the Telecommunications Research Establishment (TRE) to jam ''Luftwaffe'' ground-to-air radios operating in the very high frequency (VHF) ba ...

, a British military electronic countermeasure system used during World War II (WWII) to jam Luftwaffe night fighter communications * Atomic, biological, and chemical defense, now rendered as

chemical, biological, radiological and nuclear defense Chemical, biological, radiological and nuclear defence (CBRN defence) are protective measures taken in situations in which chemical, biological, radiological or nuclear warfare (including terrorism) hazards may be present. CBRN defence consist ...

Other uses

* ABC strategy, for "abstinence, be faithful, use a condom", a sex-education strategy *

ABC trial The ABC Trial was a United Kingdom trial conducted in the 1970s, of three men for offences under section 2 (wrongful communication of information) and (as dropped during the trial) of one of these men, a scholarly journalist, for the offence und ...

of Crispin Aubrey, John Berry and Duncan Campbell in 1978 in the United Kingdom *

Advance Booking Charter Advance Booking Charter flights were first introduced in the early 1970s to meet the largely unsatisfied demand for affordable long-haul flights to popular destinations, especially on both sides of the North Atlantic ocean. The world's first ABC f ...

, a type of air travel * '' Air batu campur'', also known as ''ais kacang'', a Malaysian dessert * American-born Chinese, people of Chinese ethnicity born in the United States * Andrew Cunningham, 1st Viscount Cunningham of Hyndhope (1883–1963), nicknamed ABC, British WWII admiral * Architectural, building and construction, an industry; for example, see

Industry Foundation Classes The Industry Foundation Classes (IFC) is a CAD data exchange data schema intended for description of architectural, building and construction industry data. It is a platform-neutral, open data schema specification that is not controlled by a singl ...

Australian-born Chinese Chinese Australians () are Australians of Chinese ancestry. Chinese Australians are one of the largest groups within the global Chinese diaspora, and are the largest Asian Australian community. Per capita, Australia has more people of Chine ...

, people of Chinese ethnicity born in Australia