| Acronym | Definition |
|---|
| IAE | Institut d'Administration des Entreprises (France) |
| IAE | Impuesto de Actividades Económicas |
| IAE | International Aero Engines |
| IAE | Integrated Acquisition Environment |
| IAE | In Any Event |
| IAE | Instituto de Aeronáutica e Espaço (Portuguese: Aeronautics and Space Institute; Brazil) |
| IAE | Inflatable Antenna Experiment |
| IAE | Institute of Agricultural Economics |
| IAE | International Association of Egyptologists |
| IAE | International Academy of the Environment (Switzerland) |
| IAE | Integral Absolute Error |
| IAE | Institute for Agricultural Engineering (Indonesia) |
| IAE | Immunoaffinity Extraction |
| IAE | Instant Arcane Explosion (gaming, World of Warcraft) |
| IAE | Internationale Energie Agentschap (Dutch: International Energy Agency) |
| IAE | Integrated Application Environment(s) |
| IAE | Institution of Agricultural Engineers |
| IAE | Integrated Aircrew Ensemble |
| IAE | Instrumentation and Electrical |
| IAE | Indirect Account Executive |
| IAE | Infrared Anomalous Emitter |
| IAE | Internationally-Acclaimed Expert |
| IAE | Institute of Australian Education (Medlands, WA, Australia) |
| IAE | Illinois Ancestor Exchange |
| IAE | Inherent Availability of Equipment |
| IAE | Internal Audits and Evaluation |
| IAE | Instituto de Actividades Espaciais (Spanish: Institute for Space Activities) |
| IAE | Interface Adapter Element (mainframes) |
| IAE | Internet Application Environment |
| IAE | Intermittent Altitude Exposure |
| IAE | Institute of Aeronautics and Engineering (India) |