# CB

CB and variants may refer to:

## Places

* CB postcode area, British post code for eastern England served by the Cambridge postal sorting office
* Cambodia (LOC MARC code, obsolete 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 Brown (born 1989), American R&B singer
* 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
* Chauncey the Bear, a imaginary friend in 2024 film Imaginary

## 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
* Conduction band of the electrons in a (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
* A retired US Navy hull classification symbol: Large cruiser (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
* Cincinnati Bengals, a team in the National Football League
* Chicago Blackhawks, a team in the National Hockey 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

* All pages with titles beginning with C. B.
* 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