CBG may refer to:

  • Cambridge Airport, England (IATA code)
  • Cambridge railway station, England (National Rail station code)
  • Cannabigerol, a non-psychoactive cannabinoid found in Cannabis
  • Capillary Blood Glucose
  • Carrier battle group
  • CBG (AM), a CBC Radio One station in Gander, Canada
  • CB Richard Ellis, which uses the NYSE ticker symbol CBG
  • Centraal Bureau voor Genealogie, the Dutch research centre for genealogy
  • Central Bank of The Gambia
  • Cigar box guitar
  • Communist Bulletin Group
  • Corticosteroid-binding globulin
  • Comic Book Guy, character on The Simpsons
  • Comics Buyer's Guide