The acronym CGB can refer to: Chorionic gonadotropin beta, glycoprotein hormone Christlichen Gewerkschaftsbund Deutschlands, the German Christian Workers' Federation Clarence Gatemouth Brown, acclaimed multi-instrumentalist, but best known for his guitar work in traditional blues C.G.B. Spender, a Fictional character in the television series The X-Files Compagnie des Chemins de Fer de Grande Banlieue or CGB, a defunct railway in France. Consumer & Governmental Affairs Bureau part of FCC C… (More on Cgb)