| Acronym | Definition |
|---|
| OHPA➣Ontario Hay Producers Association |
| OHPA➣Old Harding Pediatric Associates (Tennessee) |
| OHPA➣Ontario Health Providers Alliance (Canada; est. 1993) |
| OHPA➣Office of Health Professions Adjudicator (UK) |
| OHPA➣Office of the Health Plan Administrator (Oregon) |