ORHA

AcronymDefinition
ORHAOffice of Reconstruction and Humanitarian Assistance (US government; now the Office of the Coalition Provisional Authority)
ORHAOntario Reining Horse Association (Canada)
ORHAOregon Rental Housing Association (Salem, OR)
ORHAOregon Rural Health Association (Salem, OR)
ORHAOntario Residence Hall Association
ORHAOxford Regional Health Authority (UK)