| Acronym | Definition |
|---|
| IED | Improvised Explosive Device |
| IED | Istituto Europeo di Design (Italian: European Institute of Design; various locations) |
| IED | Inversión Extranjera Directa (Spanish) |
| IED | Introduction to Engineering and Design (course) |
| IED | Investimento Estrangeiro Direto (Portuguese: Foreign Direct Investment) |
| IED | Instituto Europeo de Diseño (Spanish: European Institute of Design) |
| IED | Interim Executive Director (various organizations) |
| IED | Investissements Etrangers Directs (French: Foreign Direct Investments) |
| IED | Id Error Detection |
| IED | Inf Extract Directory |
| IED | Initialization Exceeds Data |
| IED | Instituto Europeo Di Design |
| IED | Intermittent Explosive Disorder (psychology) |
| IED | Institute for Educational Development |
| IED | Intelligent Electronic Device |
| IED | International Encyclopedia of Dance |
| IED | Institutional Equity Division (Morgan Stanley) |
| IED | Investment and Enterprise Development (various organizations) |
| IED | Institution of Engineering Designers (UK) |
| IED | Indigenous Economic Development (Australia) |
| IED | Institute for Economic Democracy (Santa Maria, CA) |
| IED | International Educational Development |
| IED | Industrial Emissions Directive (EU) |
| IED | Interactive Exhibit Design (various organizations) |
| IED | Institute of Economic Development (UK) |
| IED | Indo-European Etymological Dictionary |
| IED | Innovative Electronic Designs, Inc |
| IED | Independent Exploratory Development |
| IED | Integrated Electric Drive |
| IED | Imitative Electronic Deception |
| IED | Implanted Electronic Device |
| IED | Interacting Equipment Document (US NASA) |
| IED | Information Element Data |
| IED | Indianapolis Economic Development |
| IED | International Executive Director |
| IED | Institution of Electrical Designers |
| IED | Individuals with Educational Disabilities |
| IED | Interactive Electronics Design, LLC (Fairview, NC) |
| IED | Inline Enrichment Device (Harley Davidson Motorcycles to richen the air/fuel mixture) |