| Acronym | Definition |
|---|
| OPH | Office of Public Health |
| OPH | Old Police Headquarters (San Diego, CA) |
| OPH | Osborne Park Hospital (Australia) |
| OPH | Old Parliament House (Canberra, ACT, Australia museum) |
| OPH | Original Pancake House (restaurant chain) |
| OPH | Organophosphorus Hydrolase |
| OPH | Ophthamologist |
| OPH | Operation Politically Homeless (Libertarian Party outreach program) |
| OPH | Orthopedic Physically Challenged |
| OPH | Otto Petersen Haus (Aachen, Germany) |
| OPH | One Person Health Sciences, Inc (Vancouver, BC, Canada) |
| OPH | Open Public Hearing |
| OPH | Oromocto Public Hospital (New Brunswick, Canada) |
| OPH | Old People Home |
| OPH | Oxidized Polyvinyl Alcohol Hydrolase |
| OPH | Orders Per Hour |