| Acronym | Definition |
|---|
| AIIR➣Airborne Infection Isolation Room |
| AIIR➣All India Internet Radio |
| AIIR➣Air Intelligence Information Report (National Investigation Committee on Aerial Phenomena) |
| AIIR➣Association des Ingénieurs de l'INSA (Institut National des Sciences Appliquées) de Rennes (French engineers association) |
| AIIR➣Associazione Imprenditori Italiani in Romania (Italian: Association of Italian Entrepreneurs in Romania) |
| AIIR➣Artists International Independent Radio (Internet radio) |
| AIIR➣Advanced Innovative Interdisciplinary Research (Virginia) |