OHAS

AcronymDefinition
OHASOff Hook Alarm System (telecommunications industry)
OHASObsidian Hydration Analysis Service
OHASOffaly Historical and Archaeological Society (Ireland)
OHASOccupational Health Automated System
OHASOcccupational Health Advisory Service (UK)
OHASOffice of HIV/AIDS Surveillance
OHASOutpatient Hospital Allowance Schedule (Anthem)