ATHA

AcronymDefinition
ATHAAmerican Trail Horse Association
ATHAAnacostia Trails Heritage Area (Hyattsville, MD)
ATHAAdvanced Training Program on Humanitarian Action
ATHAAlliance Theatrale Haitienne (Montreal, Quebec, Canada)
ATHAAssociation of Traditional Hunting Archers
ATHAAdrenal Tyrosine Hydroxylase Activity (biochemistry)