| Acronym | Definition |
|---|
| IRP | Institute for Research on Poverty (University of Wisconsin-Madison) |
| IRP | Installation Restoration Program |
| IRP | Integrated Resource Plan |
| IRP | I/O Request Packet (Microsoft Windows NT) |
| IRP | Institutional Research and Planning |
| IRP | Indianapolis Raceway Park |
| IRP | Iron Regulatory Protein (biochemistry, nutrition) |
| IRP | International Recovery Platform |
| IRP | Institutions Représentatives du Personnel (French) |
| IRP | Islamic Renaissance Party (Central Asia) |
| IRP | Institute on Race and Poverty (Minneapolis, MN) |
| IRP | Institute for Retired Professionals |
| IRP | Interest Rate Parity |
| IRP | Independent Research Project |
| IRP | Integration Reference Point (3GPP/UMTS) |
| IRP | Improved Response Program |
| IRP | International Registration Plan, Inc. |
| IRP | Islamic Republic of Pakistan (Muslim State) |
| IRP | Independent Research Provider (investment finanical analysis firm) |
| IRP | Information Resource Planning |
| IRP | Illinois Republican Party |
| IRP | Investor Reporting Package |
| IRP | Intermediate Rated Power (aviation) |
| IRP | Intermediate Rated Power |
| IRP | Interior Router Protocol |
| IRP | Institute of Radiation Protection |
| IRP | Interim Recovery Plan |
| IRP | Irish Punt (Irish Currency before 2002) |
| IRP | Incident Reporting Procedure |
| IRP | Individual Research Paper |
| IRP | Information Return Program |
| IRP | Immediate Response Please |
| IRP | Industry Resource Planning (supply chain solutions) |
| IRP | Intelligence Resources Program (Federation of American Scientists) |
| IRP | Intern Registration Program |
| IRP | Initial Receiving Point |
| IRP | Integrated Regional Planning |
| IRP | ISIS Re-Engineering Project |
| IRP | International Roaming Platform |
| IRP | Integrated Response Plan (Oil Pollution Act of 1990) |
| IRP | Industrial Readiness Planning |
| IRP | Implantable Retinal Prosthesis |
| IRP | Information Requirements Plan |
| IRP | Information Returns Processing/Program |
| IRP | Improved Radar Program |
| IRP | Interference Reporting Point |
| IRP | Intelligence Research Paper |
| IRP | Image Rejection Processor |
| IRP | Intermediate Range Plan |
| IRP | Ian Randle Publishing |
| IRP | Item Reduction Program |
| IRP | Installation Restoral Program |
| IRP | Interagency Research Program |
| IRP | Inventory Reduction Program |
| IRP | Interim Repair Parts |
| IRP | Industry Risk Profile (Aerosafe Risk Management; Australia) |
| IRP | Interference Rejection Processing |
| IRP | Initial Resupply Pack |