OPIE
| Acronym | Definition |
|---|---|
| OPIE | Open Palmtop Integrated Environment (window manager for Linux on PDAs) |
| OPIE | Office pour l'Information Eco Entomologique |
| OPIE | Ohio Program of Intensive English (Ohio University) |
| OPIE | One-Time Password in Everything (UNIX authentication method) |
| OPIE | Operational Programme Industry and Enterprise (Czech Republic) |
| OPIE | Oceania Polytechnic Institute of Education (Australia) |