OSH
- Greene King Brewery
- OSHA (disambiguation)
- OSHmail
- Occupational Safety and Health Act (United States)
- Occupational safety and health
- Old State House (disambiguation)
- Old Swinford Hospital
- Open-source hardware
- Orchard Supply Hardware
- Ordo Sancti Hieronymi
- Oregon State Hospital
- Osawatomie State Hospital
- Osh (food)
- Osh (singer)
- Oshkosh, Wisconsin
- Wittman Regional Airport