| Acronym | Definition |
|---|
| IRF➣Interferon Regulatory Factor |
| IRF➣Imposto de Renda na Fonte (Portuguese: Income Tax at Source) |
| IRF➣International Religious Freedom |
| IRF➣International Road Federation |
| IRF➣Impulse Response Function |
| IRF➣Inpatient Rehabilitation Facility (CMS) |
| IRF➣Intelligent Resilient Framework (Hewlett-Packard) |
| IRF➣Institut for Rationel Farmakoterapi (German) |
| IRF➣Inherited Rights Filter |
| IRF➣Inherited Rights Filter (Novell) |
| IRF➣International Rhino Foundation |
| IRF➣International Rectifier Corporation |
| IRF➣India Radio Forum (India and Singapore) |
| IRF➣International Rafting Federation |
| IRF➣Intermediate Routing Function |
| IRF➣Information Resource File |
| IRF➣Institute of Retirement Funds |
| IRF➣Interest Rate Future (finance) |
| IRF➣Islamic Research Foundation |
| IRF➣Information Retrieval Facility (Vienna) |
| IRF➣Integrated Research Facility |
| IRF➣Incident Report Form |
| IRF➣Initial Response Force |
| IRF➣Island Resources Foundation |
| IRF➣Information Request Form |
| IRF➣Institut für Roboterforschung (German) |
| IRF➣Institute for Regional Forecasting (University of Houston) |
| IRF➣International Renaissance Foundation |
| IRF➣Institut für Religionsphilosophische Forschung (German: Institute for Philosophy of Religion) |
| IRF➣Immediate Reaction Forces (NATO; US DoD) |
| IRF➣Internal Relay Fault (transformers) |
| IRF➣International Rogaining Federation |
| IRF➣Individual Rights and Freedoms |
| IRF➣Integer Register File |
| IRF➣Information Retrieval Framework |
| IRF➣International Ranger Federation |
| IRF➣Integrated Regional Framework (UK) |
| IRF➣International Racquetball Federation |
| IRF➣Instrument Response Function |
| IRF➣International Rail Forum |
| IRF➣Institutionally Related Foundations (CASE conference) |
| IRF➣Initial Reaction Force |
| IRF➣Individual Rights Foundation |
| IRF➣International Research Foundation |
| IRF➣International Regulators Forum (Norway) |
| IRF➣Interchange Reimbursement Fee (credit card processing) |
| IRF➣Institute of Religious Formation (various locations) |
| IRF➣Internal Requisition Form |
| IRF➣In-Room Fitness (Program) |
| IRF➣Internationale Ratten Fokkers/Fanclub (Dutch) |
| IRF➣Immediate Response Forces |
| IRF➣Institute of Robotics Research (University of Dortmund) |
| IRF➣International Racing Federation |
| IRF➣Idaho Research Foundation (University of Idaho) |
| IRF➣Institute for Rural Futures |
| IRF➣Inspectie der Rijksfinancien (Dutch) |
| IRF➣Interdepartmental Recovery Fund (Canada) |
| IRF➣Irrigation Research Foundation |
| IRF➣International Ringette Federation |
| IRF➣Istituto Ricerca e Formazione (Italian) |
| IRF➣Incineration Research Facility (US EPA) |
| IRF➣Informatik Roeing und Fritze (German) |
| IRF➣International Relief Foundation |
| IRF➣International Religious Fellowship |
| IRF➣Intrinsic Random Function |
| IRF➣Incorrect Read Fault |
| IRF➣Internet Relay Forces |
| IRF➣Iowa Retail Federation |
| IRF➣Institutet for Rymdfysik (Swedish Institute of Space Physics) |
| IRF➣India Renal Foundation |
| IRF➣Information Reduction Factor |
| IRF➣International RustFest |
| IRF➣Internet Race Finder (online gaming) |
| IRF➣Interference Reduction Factor (radio) |
| IRF➣Iron Rod Found |
| IRF➣Interreligiöses Forum Basel (German) |
| IRF➣Internal Routing Form |
| IRF➣Instrument Response File |
| IRF➣Instituto del Riesgo Financiero (Spanish) |
| IRF➣Installation Reuse Forum |
| IRF➣Innovation and Research Focus |
| IRF➣Interrogation Repetition Frequency (communications signalling) |
| IRF➣International Real Fair |
| IRF➣Interférences en Radio-Fréquences (French) |
| IRF➣Invocation Request Form |
| IRF➣Insurance Reinvestment Fund |
| IRF➣Interaction Round the Face (quantum field theory) |
| IRF➣Inspektionsrauchfangkehrerfahrzeug (German) |
| IRF➣Inter-Receiver Fairness (networking) |
| IRF➣Intraretinal Fluid (ophthalmology |
| IRF➣Inside Right Forward (soccer) |
| IRF➣Introduccion al Reconocimiento de Formas (Spanish) |
| IRF➣Intrasis Raw File |
| IRF➣Interpretation Request Form |
| IRF➣Interview Rating Form |
| IRF➣Integrated Research File |
| IRF➣Instrumentation Resources Facility |
| IRF➣Instructor Rating Form |
| IRF➣International Roaming Facility |
| IRF➣Institut de Recherche Fondamentale (French: Institute of Fundamental Research) |