CB and variants may refer to:

Places

* CB postcode area, British post code for eastern England served by the Cambridge postal sorting office * Cambodia (FIPS Pub 10-4 country code and obsolete NATO digram CB) * Cape Breton (disambiguation) * Centura București, a ring road of Bucharest, Romania * Colegio Bolivar, an American school in Cali, Colombia * Colwyn Bay, Wales * Province of Campobasso, Italy * ČB – České Budějovice, Czech Republic

People

* Chris Bosh (born 1984), American basketball player * Henry Campbell-Bannerman (1836–1908), Prime Minister of the United Kingdom 1906–1908, widely referred to by his surname initials

Brands and enterprises

* Carte Bancaire, a bank card brand * Christianssands Bryggeri, a Norwegian brewery * ScotAirways (IATA airline code CB)

Business and financial terms

* Capacity building, the process by which individuals and organizations obtain, improve, and retain the skills and knowledge needed to undertake their tasks * Certification body * Chargeback, a reversal of a banking or credit card transaction * Convertible bond, a type of bond that can convert into a specified number of shares

Science and technology

Computing and telecommunications

* Cell Broadcast, in GSM mobile networks * Citizens band radio (CB radio), a system of short-distance radio communications * Closed beta, a software development stage or testing process

Other uses in science and technology

* Cannabinoids, a group of substances that bind to animal cannabinoid receptors * Circuit breaker, an automatic electrical switch designed to protect an electrical circuit from damage caused by overcurrent * Columbium (Cb), an obsolete name for the element niobium * Valence and conduction bands, Conduction band of the electrons in a (Semiconductor, semiconducting) solid * Confirmation bias * Cumulonimbus cloud (Cb), a type of cloud that is tall, dense, and involved in thunderstorms and other intense weather

Sea vessels

* CB-class midget submarine, a group of midget submarines built for the Italian Navy during World War II * Block coefficient (C_b), a parameter describing the shape of a ship's hull * Large Cruiser, a retired US Navy hull classification (symbol CB)

Sports

Positions

* Centre-back, a defensive position in association football * Cornerback, a position in American football

Teams

* Chicago Bears, a team in the National Football League * Chicago Bulls, a team in the National Basketball Association * Cleveland Browns, a team in the National Football League

Titles

* Chief Baron of the Exchequer, the chief judge of the Court of Exchequer, an abolished English court * Companion of The Most Honourable Order of the Bath, a title conferred to British and Commonwealth citizens

Other uses

* * 2020 Singapore circuit breaker measures, commonly abbreviated as CB, a stay-at-home order implemented in response to the COVID-19 pandemic in Singapore * CB, dominical letter for a leap year starting on Friday * ''Casus belli'', a Latin expression meaning reason for war * Construction Battalion (CB or "Seabee"), a United States Navy unit responsible for any type of construction be it general or combat on land or under water. * Curveball, a music festival hosted by the band Phish * Cone Beam (especially CBCT; Cone beam computed tomography) * Cumulative Bulletin, an annual compilation of the ''Internal Revenue Bulletin'' {{Disambiguation