BB, Bb, or similar, may refer to:

In arts and entertainment

*BB, abbreviation for a catalogue of works by Béla Bartók#Catalogues and opus numbers, Béla Bartók * BB (album), ''BB'' (album), by Mod Sun (2017) *"BB Talk", 2015 song by Miley Cyrus *BB (Transformers), a character in the franchise *BB, pseudonym of author and artist Denys Watkins-Pitchford *Les B.B., a Canadian band from Quebec *BattleBots, a robot combat TV show *Beast Boy, a comic book character *Beyond Birthday, a character from the novel ''Death Note Another Note: The Los Angeles BB Murder Cases'' *Big Brother (Nineteen Eighty-Four), Big Brother (''Nineteen Eighty-Four'') or BB in Orwell's novel *Big Brother (TV series), ''Big Brother'' (TV series), home living reality TV popularity contest show *Billy Butcher, supporting character and final antagonist of the ''The Boys'' comic book series ** ''Butcher, Baker, Candlestickmaker'', spin-off comic miniseries of ''The Boys'', following Billy Butcher *** Butcher, Baker, Candlestick Maker (The Boys episode), "Butcher, Baker, Candlestick Maker" (''The Boys''), television adaptation of the comic miniseries *BB, the production code for the 1966 ''Doctor Who'' serial ''The War Machines'' *Balloon Boy, an animatronic character in Five Nights at Freddy's *BB-8, a robot in the Star Wars franchise *Breaking Bad *Bugs Bunny

Businesses and organisations

*BB 2000 Ltd, publisher of British Birds (magazine), ''British Birds'' *BB Bloggingsbooks, an imprint of the German group VDM Publishing *BB Microlight, a Hungarian ultralight aircraft manufacturer *Balair (IATA airline code) *Banco do Brasil, Banco do Brasil S.A., largest Brazilian and Latin American bank by assets *Bavarian Peasants' League or BB, a former German political party *BlackBerry Limited (stock ticker BB), Canadian technology company *Borderland Beat, an English-language news blog covering the Mexican Drug War *Boys' Brigade, a Christian youth organization *Seaborne Airlines, IATA airline code

People

*Brigitte Bardot (born 1934), French actress *Benazir Bhutto (1953–2007), former Pakistani prime minister *Denys Watkins-Pitchford (1905–1990), British children's author's pseudonym

Places

*BB postcode area, Blackburn, England *Barbados (ISO and NATO 2-letter country code BB) **.bb, the top-level domain for Barbados *Bourbon County, Kansas (state county code) *Brandenburg, Germany (ISO 3166-2 code BB)

Science

*Branch and bound, a general algorithm for finding optimal solutions *Busy beaver class in computing theory, a type of Turing Machine *Beta blocker, medication used to manage arrhythmias and to protect the heart from a second heart attack after a first heart attack

Transportation

*BB Microlight, a Hungarian ultralight aircraft manufacturer *Bürgenstock-Bahn, a funicular railway in the Swiss canton of Nidwalden *Toyota bB, a car sold in Japan *NZR Bb class, a New Zealand locomotive class *Balair (IATA airline code) *Seaborne Airlines (IATA airline code: BB) *Buckingham Branch Railroad (reporting mark BB) *Battleship, a U.S. Navy hull classification symbol *B (New York City Subway service), known as BB before 1967 *B-B, a classification of AAR wheel arrangement of railway locomotives

Other uses

*BB (ammunition), ammunition for a BB gun *Base on balls in baseball, commonly known as a walk *BB cream, a type of cosmetic *Bed and breakfast or B&B, a style of accommodation *BBCode, a lightweight markup language used to format posts in many message boards