| Acronym | Definition |
|---|
| APII➣Action Products International, Inc. (Orlando, FL) |
| APII➣Asia-Pacific Information Infrastructure |
| APII➣Automatique Productique Informatique Industrielle (French: Automatic Control Production Systems; journal) |
| APII➣Ablation Plasma Ion Implantation |
| APII➣Australian Plant Image Index (Australian National Botanic Gardens) |
| APII➣Advanced Prototype Information Infrastructure (US DoD DISA (Defense Information Systems Agency)) |