IIW
| Acronym | Definition |
|---|---|
| IIW | Internet Identity Workshop |
| IIW | International Institute of Welding |
| IIW | Instructions in Writing (various organizations) |
| IIW | It Is Written (TV/Internet religious ministry) |
| IIW | Intelligence and Information Warfare (ITT Corporation; Nashua, NH) |
| IIW | Insurance Information Warehouse |
| IIW | Institut für Internationale Wirtschaftspolitik (German: Institute for International Economics) |
| IIW | Integrated Information Workstation |
| IIW | Information-in-War |
| IIW | Institute of the Incarnate Word |