| Acronym | Definition |
|---|
| IAA➣Internationale Automobil-Ausstellung (German automobile show) |
| IAA➣International Advertising Association |
| IAA➣Israel Antiquities Authority |
| IAA➣Insurance Auto Auctions |
| IAA➣International Actuarial Association (Ottawa, Ontario, Canada) |
| IAA➣International Academy of Astronautics (Paris, France) |
| IAA➣Instituto de Astrofisica de Andalucia |
| IAA➣International Association of Art (various organizations) |
| IAA➣Indoleacetic Acid |
| IAA➣Industrie Agro-Alimentaire |
| IAA➣Intel Application Accelerator (software) |
| IAA➣Institute for Applied Autonomy |
| IAA➣International Arbitration Act (Singapore) |
| IAA➣Initial Address Acknowledgement |
| IAA➣Intel Application Accelerator |
| IAA➣Internationalen Automobil Ausstellung |
| IAA➣International Achievement Awards (Industrial Fabric Association International) |
| IAA➣Institute of Actuaries of Australia |
| IAA➣Interagency Agreement(s) |
| IAA➣Insurance Application Architecture (insurance) |
| IAA➣Interactive Achievement Awards (Academy of Interactive Arts & Sciences) |
| IAA➣Instituto Antartico Argentino (Spanish: Argentine Antarctic Institute; Argentina) |
| IAA➣Investment Adviser Association (formerly Investment Counsel Association of America) |
| IAA➣I Am Alive (emergency system) |
| IAA➣International Aerospace Abstracts |
| IAA➣Indianapolis Airport Authority |
| IAA➣Igarka (Russia) |
| IAA➣Interrupted Aortic Arch (genetic heart defect) |
| IAA➣Intra-Abdominal Adiposity |
| IAA➣Ishikawa Alumni Association (Japan) |
| IAA➣Information about Alaska |
| IAA➣Insulin Autoantibody |
| IAA➣Illinois Alternate Assessment (education) |
| IAA➣Irrigation Association of Australia |
| IAA➣International Academy of Architecture |
| IAA➣Interlochen Arts Academy |
| IAA➣I Am Awsome |
| IAA➣International Award Association |
| IAA➣Indiana Apartment Association (Indianapolis, IN) |
| IAA➣Identification and Authentication |
| IAA➣Israeli Airports Authority |
| IAA➣Information Assurance Advisory (US NSA) |
| IAA➣Integrated Agriculture Aquaculture |
| IAA➣Information Assurance Awareness (formerly known as Security Awareness, Training and Education program) |
| IAA➣International Authentication Association (trade association) |
| IAA➣Interim Administration of Afghanistan |
| IAA➣Israel Association of Actuaries |
| IAA➣Idyllwild Arts Academy (Idyllwild, California) |
| IAA➣Ivey Alumni Association (Canada) |
| IAA➣Investment Advisors Act of 1940 |
| IAA➣Illinois Arts Alliance |
| IAA➣Intergovernmental and Aboriginal Affairs (Canada) |
| IAA➣Information Appliance Associates (California) |
| IAA➣Islamic Affairs Analyst (publication) |
| IAA➣International Assignment Agreement |
| IAA➣Indie Artists Alliance (Castro Valley, CA) |
| IAA➣Inter-Country Adoption Act (2000) |
| IAA➣Idaho Aquaculture Association |
| IAA➣I Am Away |
| IAA➣I Absolutely Agree |
| IAA➣Islamic Action Association |
| IAA➣International Air Academy |
| IAA➣Islamic Academy of Alabama (Birmingham, Alabama) |
| IAA➣Institute for Alternative Agriculture |
| IAA➣Indiana Aquaculture Association |
| IAA➣Incident Awareness and Assessment |
| IAA➣Interview and Advocacy Assessment (UK) |
| IAA➣Interconnected Accredited AIS |
| IAA➣I Am Annoyed |
| IAA➣Interim Approval Authorization |
| IAA➣Inactive Aircraft Authorization |
| IAA➣Integrated Audit/Appraisal |
| IAA➣Inter-American Association of Accountants |
| IAA➣Internet Alcoholics Anonymous |
| IAA➣Installation Application Administrator |
| IAA➣Integration and Assembly |
| IAA➣IUSS Acoustic Analysis |
| IAA➣Identification, Authentication and Authorisation (IT security) |
| IAA➣Intelligence Analysis Application |
| IAA➣Inflatable Array Antenna |
| IAA➣Internet Application Architect |