GMCA

AcronymDefinition
GMCAGreat March for Climate Action (est. 2013)
GMCAGreater Manchester Combined Authority (Manchester, England, UK)
GMCAGalt Mile Community Association (Fort Lauderdale, FL)
GMCAGlobal Marketing Communication & Advertising (academic program)
GMCAGeorgia Mosquito Control Association (Statesboro, GA)
GMCAGlobal Marine Climatic Atlas
GMCAGeorgia Municipal Cemetery Association
GMCAGore Microwave Cable Assembly