| Acronym | Definition |
|---|
| IRPA | Institut Royal du Patrimoine Artistique (French: Royal Institute of Artistic Heritage; Brussels, Belgium) |
| IRPA | Immigration and Refugee Protection Act (Canada) |
| IRPA | International Radiation Protection Association |
| IRPA | International Rugby Players Association |
| IRPA | Intensification of Research in Priority Areas |
| IRPA | Institut de Recherche sur le Profil d'Apprentissage (French: Learning Profile Research Institute; Canada) |
| IRPA | International Retinitis Pigmentosa Association |
| IRPA | Interest Rate Protection Agreement |
| IRPA | Idaho Recreation and Park Association |
| IRPA | Individual Risk per Annum (risk assessment) |
| IRPA | Indonesian Risk Professionals Association |
| IRPA | Institut de Rééducation Psychothérapique pour Adolescents (French: Psychotherapy Rehabilitation Institute for Teens) |