| Acronym | Definition |
|---|
| OPAP➣Overseas Presence Advisory Panel |
| OPAP➣Onomasia Proelefseos Anoteras Piotitos (Esperanto: Appellation of Origin of Superior Quality; wine classification) |
| OPAP➣Operational Performance Acceptance Procedures |
| OPAP➣On Premises Accreditation Program |
| OPAP➣Other Project-Affected People (dam construction) |
| OPAP➣Office of Policy Analysis and Planning (Department of Corrections and Rehabilitation; Canada) |