| IRPA | Idaho Recreation and Park Association 
| Others |
| IRPA | Immigration and Refugee Protection Act
| Others |
| IRPA | Institute for Research and Policy on Acceleration
| Others |
| IRPA | Institute For Robotic Process Automation
| Others |
| IRPA | Institutional Research Planning and Assessment
| Others |
| IRPA | Institutional Research Planning Assessment
| Others |
| IRPA | Instrument for Reactive and Proactive Aggression
| Others |
| IRPA | Intensification of Research in Priority Areas
| Others |
| IRPA | International Racing Press Association
| Others |
| IRPA | International Radiation Protection Association
| Others |
| IRPA | International Relations Politics Association
| Others |
| IRPA | International Review of Public Administration
| Others |
| IRPA | International Rugby Players Association
| Others |
| IRPA | International Rugby Players' Association
| Others |