| Acronym | Definition |
|---|
| AIPA | Autorità per l'Informatica nella Pubblica Amministrazione (Italy) |
| AIPA | American Inventors Protection Act of 1999 |
| AIPA | Asean Inter-Parliamentary Assembly (Jakarta, Indonesia) |
| AIPA | Australian and International Pilots Association |
| AIPA | Alberta Irrigation Projects Association |
| AIPA | Associazione Italiana Pazienti Anticoagulati |
| AIPA | Associate Institute of Public Accountants |
| AIPA | Associazione Italiana pro Adozioni (Italian adoption agency) |
| AIPA | Advanced Information Processing and Analysis (Symposium) |
| AIPA | Association of Iranian Professionals of Austin |
| AIPA | American International Players Association |
| AIPA | Accident Initiation and Progression Analysis |
| AIPA | Australian Institute of Professional Archaeologists, Inc. |
| AIPA | Advertising & Illustrative Photographers Association, Inc. |
| AIPA | Affiliate of the Insolvency Practitioners Association (UK) |