IIAR
| Acronym | Definition |
|---|---|
| IIAR | International Institute of Ammonia Refrigeration |
| IIAR | Institute of Industry Analyst Relations (est. 2006; MIddlesex, UK) |
| IIAR | Illinois Institute for Addiction Recovery (est. 1979) |
| IIAR | International, Intergovernmental and Aboriginal Relations (Edmonton, Alberta, Canada) |
| IIAR | Indian Institute of Advanced Research (Gandhinagar, Gujarat, India) |
| IIAR | If I Am Right |