IAA
- International Motor Show, a trade show in Frankfurt and Hannover
- International Working Men's Association, also known as the "First International "
- International Actuarial Association, the international federation of national organizations actuary
- International Advertising Association
- International Academy of Architecture
- International Academy of Astronautics
- Igarka Airport, a Russian airport after the IATA code
- Instituto de Astrofísica de Andalucía, an astronomical institute in Spain
- Indole- 3 -acetic acid, indole-3 -acetic acid, see
- International Alpaca Association
- Indian Association of Alberta
- International Labour Office, an organ of the International Labour Organisation
- Internet - export declaration, see export declaration
- Intel Application Accelerator, a software
- Irish Aviation Authority, the Irish air traffic control
- Disambiguation
- Abbreviation
405695
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