| Acronym | Definition |
|---|
| OPCI | Out-of-Parameter Circuit Interrupter (Canadian electrical code) |
| OPCI | Onafhankelijk Platform Cochleaire Implantatie (Dutch: Independent Platform for Cochlear Implantation; est. 2005) |
| OPCI | Organisme de Placement Collectif en Immobilier (France) |
| OPCI | Owner Purchased, Contractor Installed |
| OPCI | Office of Parent and Community Involvement (District of Columbia Public Schools, Washington, DC) |
| OPCI | Optical Physics Consulting Incorporated |
| OPCI | Overweight/Obesity Prevention and Control Initiative (Department of Public Health; Massachusetts) |