GGB may refer to:
Gerdau, a Brazilian steel company GGB Bearing Technology, a global plain bearings manufacturer Golden Gate Bridge, a suspension bridge in San Francisco, CA Gornergrat railway (German: ), in Switzerland Governor-General of the Bahamas Governor-General of Barbados Governor-General of Belize Green Garter Band, of the University of Oregon Grupo Gay da Bahia, a gay rights organization in Brazil GeoGebra Gabriel George Brown