| Acronym | Definition |
|---|
| OHPD➣Obsessive Harry Potter Disorder |
| OHPD➣Oral Health and Preventive Dentistry (journal) |
| OHPD➣Office of Housing, Planning and Development (Tennessee Department of Mental Health and Development Disabilities) |
| OHPD➣Ontario Heritage Properties Database (searchable database of government-protected, architectural-heritage properties) |
| OHPD➣Oh planning+design (architecture firm; Portland, Oregon) |
| OHPD➣Oak Hill Police Department |