| Acronym | Definition |
|---|
| CIOP➣Centralny Instytut Ochrony Pracy (Polish: Central Institute for Labour Protection) |
| CIOP➣Common Input Output Platform |
| CIOP➣Centro de Investigaciones Opticas (La Plata, Argentina) |
| CIOP➣Chicago Industrial/Organizational Psychologists |
| CIOP➣Common Inter-ORB Protocol |
| CIOP➣Chartered Insurance Operations Professional Institute (New York, NY) |
| CIOP➣Common Interface Operating Procedure |
| CIOP➣Coaxial Input/Output Panel |
| CIOP➣Clandestine Intelligence Operation Proposal |