| Acronym | Definition |
|---|
| IWU➣Illinois Wesleyan University (Bloomington, IL) |
| IWU➣Indiana Wesleyan University |
| IWU➣Inter Working Unit |
| IWU➣Internet Wireless Unit |
| IWU➣Interworking Unit |
| IWU➣I Want You |
| IWU➣International Winter University (Germany) |
| IWU➣Intermediate Working Unit |
| IWU➣Incarnate Word University |
| IWU➣Isolation Working Unit |
| IWU➣Institute Wohnen und Umwelt GmbH (Darmstadt, Germany) |
| IWU➣I'm Watching You (gaming clan) |