GGB Gauteng Gambling Board GGB Guerilla Gay Bar (social group; various locations) GGB Gornergrat Bahn AG (Switerzland) GGB Ghetto Girl Blue (Jessica Holter) GGB Garage de la Gare de Beauchamp (France) GGB Generalized Global Basis GGB Gedrag en Gehoorzaamheid Beginners GGB Girls Gone By (publ...