OPPA
| Acronym | Definition |
|---|---|
| OPPA | Online Privacy Protection Act (California) |
| OPPA | Ontario Provincial Police Association (Canada) |
| OPPA | Ohio Promotional Products Association (Akron, OH) |
| OPPA | Office of Pre-Professional Advising (University of South Carolina) |
| OPPA | Office of Policy, Planning and Analysis |
| OPPA | Operation Plan Package Appraisal |