| Acronym | Sense | Language | Topics |
|---|---|---|---|
| OPC | Open Process Control | In English | → Data |
| OPC | Organisation pour la Prévention de la Cécité (www.opc.asso.fr) | In French | → Organizations and associations → Ophthalmology |
| OPC | Observatoire des Politiques Culturelles (www.observatoire-culture.net) | In French | → Organizations and associations → Politics → Civilization, culture, progress |
| OPC | Organisme de Placement Collectif | In French | → Finance |
| OPC | Office de la Protection du Consommateur (www.opc.gouv.qc.ca) | In French | → Central administration → Consumerism |
| OPC | Offre Préalable de Crédit | In French | → Banks |
| OPC | Optical Power Calibration | In English | → Optics |
| OPC | Opel Performance Center | In English | → Automobile manufacturing |
| OPC | Ordonnancement, Pilotage et Coordination | In French | → Civil engineering → Construction |
| OPC | OLE for Process Control | In English | → Networks, communication |
| OPC | Oligodendrocy Precursor Cell | In English | → Cytology |
| OPC | Organic Photo Conductor | In English | → Peripheral devices |
| OPC | Orthodox Presbyterian Church (www.opc.org) | In English | → Protestant churches |
| OPC | Optical Proximity Correction | In English | → Graphic industries, printing, publishing |
| OPC | Optimum Picture Control | In English |