IIRG
| Acronym | Definition |
|---|---|
| IIRG | International Information Retrieval Guild |
| IIRG | Institutional Investor Research Group (various locations) |
| IIRG | Institute for International Research in Glass (Sunderland, England, UK) |
| IIRG | Interface Interest and Research Group (Indiana University) |
| IIRG | Insurance Rating Group (insurance) |