| Acronym | Definition |
|---|
| AII | Art Institutes International (various locations) |
| AII | Accredited Investors, Inc. (Edina, MN) |
| AII | Angiotensin II |
| AII | Analogical and Inductive Inference |
| AII | Airborne Infection Isolation (public health) |
| AII | American International Industries (Los Angeles, CA) |
| AII | Agence de l'Innovation Industrielle (French Agency for Industrial Innovation) |
| AII | Adriatic and Ionian Initiative (various locations) |
| AII | Auto ID Infrastructure |
| AII | Autologic Information International |
| AII | Attachment Individual Identifier |
| AII | Automated Invoice Interface (imports) |
| AII | Automatique et Informatique Industrielle (French: Automation and Industrial Computing) |
| AII | American Institute of Inspectors (Lower Lake, CA) |
| AII | ASEAN Information Infrastructure |
| AII | Active Input Interface (used in UNI PMD specs for Copper/Fiber) |
| AII | Australian Industry Involvement |
| AII | Atelier d'Image et d'Informatique (Computer graphics school, Paris, France) |
| AII | Area of Intelligence Interest |
| AII | Acceptance Inspection Instruction |
| AII | Army Information Infrastructure |
| AII | Alloys International, Inc. (Islandia, NY) |
| AII | Army Intelligence Interpreter |
| AII | Automated Item Identification |
| AII | Automation Image, Inc. |
| AII | Action-Inferring Interface |
| AII | Asset Inclusion Indicator |
| AII | Assured Information Infrastructure |
| AII | Advanced Interactive Interfaces |