CB
- 2020 Singapore circuit breaker measures
- Block coefficient
- C-flat minor
- CB postcode area
- CB-class midget submarine
- Cambodia
- Cannabinoids
- Capacity building
- Cape Breton (disambiguation)
- Carte Bancaire
- Casus belli
- Cell Broadcast
- Centre-back
- Centura București
- Certification body
- Chargeback
- Chaturbate
- Chicago Bears
- Chicago Blackhawks
- Chicago Bulls
- Chief Baron of the Exchequer
- Chris Bosh
- Chris Brown
- Christianssands Bryggeri
- Cincinnati Bengals
- Circuit breaker
- Citizens band radio
- Cleveland Browns
- Closed beta
- Colegio Bolivar
- Columbium
- Colwyn Bay
- Companion of the Order of the Bath
- Cone beam computed tomography
- Confirmation bias
- Construction Battalion
- Convertible bond
- Cornerback
- Cumulonimbus cloud
- C♭ (musical note)
- C♭ major
- Henry Campbell-Bannerman
- Imaginary (film)
- Internal Revenue Bulletin
- List of cruisers of the United States Navy
- Phish
- Province of Campobasso
- ScotAirways
- Valence and conduction bands
- České Budějovice