| Acronym | Definition |
|---|
| IRAP | Imposta Regionale sulle Attività Produttive (Italy) |
| IRAP | Industrial Research Assistance Program (National Research Council, Canada) |
| IRAP | Innovative Research and Products (Stamford, CT) |
| IRAP | Interleukin-1 Receptor Antagonist Protein |
| IRAP | Implicit Relational Assessment Procedure (psychology) |
| IRAP | Ionizing Radiation and Polymers Symposium |
| IRAP | International Roaming Access Protocol |
| IRAP | Intelligent RF Access Point (Airespace) |
| IRAP | Interagency Radiological Assistance Plan |
| IRAP | Injury Risk Assessment and Prevention (University of Louisville) |
| IRAP | Infosec Registered Assessor Program (Australia) |
| IRAP | Image Reduction and Analysis Package (NASA) |
| IRAP | Interim Response Action Plan (Michigan Department of Environmental Quality) |
| IRAP | Iraqi Refugee Assistance Project (Yale Law School) |
| IRAP | International Research Assistance Program |