AB

AB, Ab, or ab may refer to:

Arts and media

 * American Bandstand, a music-performance television show
 * Analecta Bollandiana, an academic journal
 * Ancienne Belgique, a concert hall in Brussels, Belgium

Business terminology

 * Akcinė bendrovė, Lithuanian equivalent of an S.A. corporation
 * Aktiebolag, Swedish for "corporation", similar to AG, Ltd or Inc

Businesses

 * A & B High Performance Firearms, a defunct sporting firearms manufacturer
 * AB Airlines, a defunct British airline
 * AB Groupe, a French broadcasting group
 * Activision Blizzard, American holding company for Activision and Blizzard Entertainment
 * Air Berlin (former IATA airline code AB), a former airline
 * Alderson-Broaddus College, a liberal-arts college in West Virginia, US
 * Alfa-Beta Vassilopoulos, a Greek supermarket chain
 * Allen-Bradley, a brand of industrial control products, manufactured by Rockwell Automation
 * AllianceBernstein (New York Stock Exchange Symbol AB), a US-based asset management firm
 * American Biograph (film logo AB), a former motion picture company
 * Anheuser-Busch, a brewing company
 * Bonza (IATA code AB), an Australian airline

Linguistics

 * Ab (cuneiform), a written syllable
 * Ab (Semitic), a Semitic word for "father"
 * ab, a Welsh patronymic
 * Ap (water), Vedic Sanskti term for water, surviving as In Persian as Āb

Occupations and ranks

 * Able Seaman (occupation), a civilian occupation
 * Able Seaman (rank), a naval rank
 * Airman Basic, the lowest rank in the United States Air Force

Organizations

 * Afrikaner Broederbond, a South African secret society from 1918 to 1994
 * Aryan Brotherhood, an American gang

Places

 * Anzab-e Olya or Āb, a village in Iran
 * AB postcode area, UK, including Aberdeen, Scotland


 * Albania (WMO country code)
 * Alberta (Canadian Province/Territory Code)
 * Air Base, used by the United States Air Force for overseas bases
 * Aschaffenburg (vehicle registration plate), Germany

Science and technology

 * AB (star catalogue) (Azzopardi / Breysacher), a catalogue of Wolf Rayet stars in the Small Magellanic Cloud
 * Aggregate base
 * AB Class amplifier, a classification of electric amplifier
 * Category of abelian groups (Ab), in mathematics
 * ApacheBench, a command line tool for Apache HTTP Server

Chemistry

 * Alabamine, a former name of the element astatine
 * Albite, a feldspar mineral
 * Ammonia borane, a chemical compound
 * Antibonding (a.b.), used to describe the character of orbitals in atomic and molecular electronic structure

Medicine

 * AB blood, a blood type in the ABO blood group system
 * AB toxin, Type III toxin secreted by some pathogenic bacteria
 * Antibody (medical abbreviation)
 * Rectus abdominis muscle (common name abs), a paired stomach muscle

Religion

 * Ab (Egyptian heart-soul concept), a concept of the heart-soul in ancient Egyptian religion
 * Ab., a Hebrew abbreviation related to Pirkei Avot, a compilation of teachings and maxims from the Mishnaic period
 * Aitareya Brahmana, an ancient Indian collection of sacred hymns

Sport

 * Akademisk Boldklub, a Danish professional football club
 * Argja Bóltfelag, a Faroese association football club
 * Aviron Bayonnais, French rugby union club
 * At bat, in baseball statistics

Transportation

 * NZR Ab class, a New Zealand steam locomotive
 * Armed boarding steamer, used by the UK during World War I for boarding enemy vessels
 * AB, a US Navy hull classification symbol: Crane ship (AB)

People

 * AB de Villiers (born 1984), South African middle order batsman and wicket-keeper
 * Adrien Broner (born 1989), American Boxer, nicknamed AB
 * Allan Border (born 1955), Australian cricketer, nicknamed A.B.
 * Antonio Brown (born 1988), American football player, nicknamed AB

Other uses

 * Ab (given name), a short form of Albert (or occasionally Abraham or Abbott)
 * AB, a South Australian dish made of hot potato chips, gyro meat and sauces, similar to a Halal snack pack
 * Abkhaz language (ISO 639-1 language code ab), a Northwest Caucasian language spoken mostly by the Abkhaz people
 * Adult baby, a person who practices paraphilic infantilism
 * Bachelor of Arts (Latin: Artium baccalaureus)
 * Assembly Bill, a type of legislation in the US