| Acronym | Definition |
|---|
| OIRP➣Office of Institutional Research and Planning |
| OIRP➣Office of International Research Programs (Agricultural Research Service; USDA) |
| OIRP➣Office of International Relations and Protocol (Canada) |
| OIRP➣Office of Institutional Research and Policy (various locations) |
| OIRP➣OPTEC Instrumentation Review Panel |