| Acronym | Definition |
|---|
| IRE | Ireland |
| IRE | Investigative Reporters and Editors, Inc. |
| IRE | Institute for Research and Evaluation (Salt Lake City, UT) |
| IRE | Institute of Radio Engineers (old name for IEEE) |
| IRE | Investment Related Expenses (various organizations) |
| IRE | Iron Responsive Element |
| IRE | Information Retrieval Engine |
| IRE | International Rental Exhibition (trade show) |
| IRE | Innovating Regions in Europe (European Commission) |
| IRE | Institutional Real Estate (various organizations) |
| IRE | Indefinitely Reinvested Earnings |
| IRE | InterRegioExpress (German railway) |
| IRE | International Review of Education |
| IRE | Information Resource Engineering |
| IRE | Institut National des Radioéléments |
| IRE | Internal Reflection Element |
| IRE | Impairment Rating Evaluation |
| IRE | Imaginación Racional Emotiva (Spanish: Rational Emotive Imagination; psychology) |
| IRE | Institute for Regional Education |
| IRE | Internal Reconnection Event |
| IRE | Inter-Continental Rubber Exchange (Index) |
| IRE | International Radio Engineers |
| IRE | Infrastructure Renewals Expenditure |
| IRE | Ionizing Radiation Effects |
| IRE | Initial Response Element |
| IRE | Institute for Railroad Engineering |
| IRE | Immediate Ready Element |
| IRE | International Respiratory Epidemiology |
| IRE | Institute of Royal Engineers |
| IRE | International Review of Entrepreneurship (Senate Hall Academic Publishing) |
| IRE | Inertial Reference Electronics |
| IRE | Inspection Régionale de l'Elevage (French: Regional Livestock Inspection; Sénégal) |