| Acronym | Definition |
|---|
| IRD | Inland Revenue Department (various nations) |
| IRD | Institut de Recherche pour le Développement (Marseille, France) |
| IRD | Institute of Rural Development (India) |
| IRD | Integrated Receiver Decoder |
| IRD | In Room Dining (hotels) |
| IRD | Inter-Religious Dialogue (various organizations) |
| IRD | Institute on Religion and Democracy (organization) |
| IRD | Interest Rate Differential |
| IRD | Interface Requirements Document |
| IRD | Image Rate Duplication |
| IRD | Intermediate Reduction Drive |
| IRD | Input Output Read |
| IRD | Image Replacement Documents |
| IRD | Impact Recording Device |
| IRD | Integrated Regional Development (various locations) |
| IRD | Interest Rate Derivatives (finance) |
| IRD | Information Resource Dictionary |
| IRD | Increment(al) Requirements Document |
| IRD | International Relief & Development |
| IRD | Institute of Reading Development |
| IRD | Immune Reconstitution Disease |
| IRD | Image Replacement Document (Check 21) |
| IRD | Intelligent Resource Director (IBM mainframes, workload management) |
| IRD | Initial Review Date (various organizations) |
| IRD | Instituto de Radioproteção e Dosimetria (Portugese) |
| IRD | I Really Do |
| IRD | Ice-Rafted Detritus (pebbles dropped on sea floor by icebergs) |
| IRD | International Resource Development |
| IRD | Institut de Recherche et Développement |
| IRD | Integrated Receiver Descrambler |
| IRD | Ionizing Radiation Division (National Institute of Standards & Technology) |
| IRD | Interest and Royalties Directive (EU) |
| IRD | Infantile Refsum Disease |
| IRD | Intelligence and Reconnaissance Division (US DoD) |
| IRD | Industry Research and Development |
| IRD | Integrated Requirement Design |
| IRD | Internal Revenue Directorate (Iceland) |
| IRD | Industrial Relations Department |
| IRD | Implementation Row Descriptor (ODBC) |
| IRD | Interchange Rate Designator (MasterCard) |
| IRD | Irritable, Restless, Discontent (addiction recovery) |
| IRD | Interface Requirement Document |
| IRD | Investigations and Resolutions Division (US DoD) |
| IRD | Independent Research & Development |
| IRD | Industry Resource Directory |
| IRD | Intelligence Reporting Directive (US DoD) |
| IRD | Initial Requirements Document |
| IRD | Income in Respect to Decedent |
| IRD | Information Requirements Document |
| IRD | Information Resources Directory |
| IRD | Infrared Decoy |
| IRD | Integrated Resolution Designs (Citrus Heights, CA) |
| IRD | Initial Requirements Determination |
| IRD | Interoperability Requirements Document |
| IRD | Installation Requirements Document |
| IRD | Image Record Descriptor (US Postal Service) |
| IRD | Infrastructure Requirements Document |
| IRD | Incident Response Division |
| IRD | Instruction Removal Detector |
| IRD | Integrated Requirements Determination |
| IRD | Introduction to Relational Databases (course) |
| IRD | Integration Requirements Definition |
| IRD | International Requirements Document |
| IRD | Intelligence Reserve Division |
| IRD | Intensive Resource Development (oil & gas industry) |
| IRD | International Relief and Development in Afghanistan |
| IRD | Illinois Research & Development |
| IRD | Infinity Research and Development, Inc |