| Acronym | Definition |
|---|
| IAAR | Independent Association of Accredited Registrars |
| IAAR | Institute of African American Research (University of North Carolina) |
| IAAR | Israeli Association for Aerosol Research |
| IAAR | International Association for Asset Recovery (est. 2008) |
| IAAR | International Academy of Advanced Reflexology |
| IAAR | Institute of Arctic and Alpine Research (now INSTAAR) |
| IAAR | Information Agency Acquisition Regulations |
