| Acronym | Definition |
|---|
| IRPP➣Integrated Rehabilitation Project Plan (archaeological project of Council of Europe) |
| IRPP➣Institute for Research on Public Policy (Institut de Recherché en Politiques Publiques - Canada) |
| IRPP➣Impôt Sur Le Revenu des Personnes Physiques (French: personal income tax |
| IRPP➣Institute on Religion and Public Policy |
| IRPP➣Indian River Power Plant (Delaware) |
| IRPP➣Ionizing Radiation Protection Program |
| IRPP➣Industrial Readiness Planning Program |