| Acronym | Definition |
|---|
| IWF | Interworking Function |
| IWF | Independent Wrestling Federation |
| IWF | International Weightlifting Federation |
| IWF | Internet Watch Foundation |
| IWF | Independent Women's Forum |
| IWF | Inter Working Function |
| IWF | International Wrestling Federation |
| IWF | Internationaler Währungsfond (German; IMF) |
| IWF | Inmate Welfare Fund (prisons) |
| IWF | International Woodworking Machinery & Furniture Supply Fair |
| IWF | Interworking Functionality |
| IWF | Institute for Wisconsin's Future |
| IWF | International Workshop Festival |
| IWF | Interactive Water Feature |
| IWF | Internet Wrestling Federation |
| IWF | Information Warfare Flight |
| IWF | Iterative Water-Filling |
| IWF | Irish Wolfhound Foundation |
| IWF | Iterative Waterfilling (optimization technique) |
| IWF | Idiot with Firewall |
| IWF | Initial Working Force |