| Acronym | Definition |
|---|
| IEW | International Education Week |
| IEW | Inter-Environnement Wallonie (now: Fédération wallonne des associations d'environnement) |
| IEW | Institut für Empirische Wirtschaftsforschung (German: Institute for Empirical Research in Economics; University of Zurich; Switzerland) |
| IEW | Intelligence & Electronic Warfare |
| IEW | International Energy Workshop |
| IEW | Internet Everywhere |
| IEW | Institute for Excellence in Writing (Atascadero, CA) |
| IEW | Information Engineering Workbench (Knowledgeware) |
| IEW | Indogermanisches Etymologisches Wörterbuch (German: Indo-European Etymological Dictionary) |
| IEW | Institut für Europa- und Wirtschaftsvölkerrecht (German: Institute for European and International Economic Law; Switzerland) |
| IEW | Innovation and Enterprise Week (conference) |
| IEW | Industrial Electronic Wiring Ltd. (UK) |
| IEW | Institute of Eastern Wisdom (Haiku, HI) |
| IEW | Interactive Extreme Wrestling (role-playing group) |