| Acronym | Definition |
|---|
| IAAG➣Inter-Agency Advisory Group (HIV/AIDS; UN) |
| IAAG➣Institut für Allgemeine und Angewandte Geologie (German) |
| IAAG➣Infrastructure Assurance Advisory Group |
| IAAG➣Industry Accounting and Auditing Guide |
| IAAG➣Inproved Australian Acoustic Generator |
| IAAG➣Investment, Analysis and Advice Group (Citi) |