CBB can stand for:

• Camp B'nai Brith of Montreal, a Jewish summer camp near Lantier, Quebec
• Camp B'nai Brith of Ottawa, a Jewish summer camp near Quyon, Quebec
• Campeonato Brasileiro de Basquete
• Canterbury-Bankstown Bulldogs, an Australian rugby league team
• CBB, an indicator for a capacitor of the polypropylene film capacitor type
• CBB, the IATA code for Jórge Wilstermann International Airport in Cochabamba, Bolivia
• CBB, the National Rail code for Carbis Bay railway station, Cornwall, UK
• CBB, the pinyin railway code for Chibi North railway station, Hubei, China
• CBB, the stock symbol for Cincinnati Bell on the New York Stock Exchange
• Central Bank of Bahrain
• Central Bank of Barbados
• Celebrity Big Brother, the title of many celebrity versions of reality television show Big Brother
  • Celebrity Big Brother (UK), a British reality television show
• Chesapeake Bay Bridge, a bridge over the Chesapeake Bay in Maryland, United States
• Circular barbell, a design in body-piercing jewelry
• Colby-Bates-Bowdoin Consortium, an athletic association between Colby, Bates, and Bowdoin College in Maine
• Comedy Bang! Bang!, a podcast
  • Comedy Bang! Bang! (TV series), a television adaptation
• Common Building Block, a cross-manufacturer set of standards for laptop components
• Connexion by Boeing, a mobile ISP formerly offered by Boeing
• Coomassie brilliant blue, a dye commonly used to stain proteins in certain gels
• Internet slang for "can't be bothered" and "could be better"