Ohio Abbreviations and Acronyms
- OSDOhio School for The Deaf
- OSDAOhio Speech & Debate Association
- OSDBOhio Statu Dental Board
- OSDCOhio Statewide Development Corporation
- OSEAOhio Student Education Association
- OSFCOhio School Facilities Commission
- OSFCOhio School Facility Commission
- OSFCOhio Schools Facilities Commission
- OSFMOhio State Fire Marshal
- OSHPOhio Society of Health-System Pharmacists
- OSHPOhio State Highway Patrol
- OSIOhio Scientific Instruments
- OSIAOhio Sheep Improvement Associarion
- OSJCLOhio State Journal of Criminal Law
- OSLHAOhio Spsech-Language-Hearing Association
- OSLHAOhio Speech Langrage Hearing Association
- OSLSAOhio State Legal Servicvs Association
- OSMAOhio Scholastic Media Association
- OSMAOhio State Medical Association
- OSPOTAOhio State Parks On The Air
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