| Acronym | Definition |
|---|
| APIS | Advance Passenger Information System (airline data interchange system) |
| APIS | Advanced Papyrological Information System |
| APIS | Annual Poverty Indicator Survey (Philippines) |
| APIS | Apostle Islands National Lakeshore (US National Park Service) |
| APIS | Apicultural Information and Issues |
| APIS | Arbeitsdatei PIOS - Innere Sicherheit |
| APIS | Accion Popular de Integracion Social (Spanish: People's Action for Social Integration; Mexico) |
| APIS | Approved Production Inspection System |
| APIS | Alternative Photographic International Symposium (New Mexico) |
| APIS | Antarctic Pack-Ice Seals Program (SCAR-GSS) |
| APIS | Armor Piercing Incendiary Shells |
| APIS | Association for Philosophy In Schools |
| APIS | Actual Platform Implementation Specification (iSMART) |
| APIS | Advanced Personnel Information System |