ORPA

AcronymDefinition
ORPAOffice of Research and Project Administration (various universities)
ORPAOregon Recreation and Park Association
ORPAOrthophoto Analyst
ORPAOther Route with Public Access (UK)
ORPAOff Road Promoters Association (UK)
ORPAOrganización Revolucionario del Pueblo en Armas (Spanish: Revolutionary Organization of the People in Arms; Guatemala)
ORPAOffice of Research and Policy Analysis (Montana)
ORPAOhio Rifle Pistol Association