| Acronym | Definition |
|---|
| ORC | Ohio Revised Code |
| ORC | Online Resource Centre |
| ORC | Oregon City (Amtrak station code; Oregon City, OR) |
| ORC | Optoelectronics Research Centre (various schools) |
| ORC | Opinion Research Corporation |
| ORC | Organic Rankine Cycle |
| ORC | Ontario Racing Commission (Government of Ontario, Canada) |
| ORC | Optimized Row Columnar (file format) |
| ORC | Origin Recognition Complex |
| ORC | Organized Retail Crime |
| ORC | Oracle Resources |
| ORC | Organic Research Centre (UK) |
| ORC | Otago Regional Council (New Zealand) |
| ORC | Ontario Realty Corporation |
| ORC | Operator in Responsible Charge (water treatment) |
| ORC | Outdoor Recreation Center |
| ORC | Offshore Racing Council (sailboat racing) |
| ORC | Operations Research Center (Massachusetts Institute of Technology) |
| ORC | Opinion Research Company (various locations) |
| ORC | Oregon Racing Commission (Portland, OR) |
| ORC | Office of Regional Counsel |
| ORC | Origin Receiving Charge |
| ORC | Officers' Reserve Corps |
| ORC | Overriding Commission (India) |
| ORC | Orange River Colony (South Africa) |
| ORC | Osteoporosis Research Center (Creighton University; Omaha, NE) |
| ORC | Operador de Red Comercial (Spanish: Commercial Network Operator; Guatemala) |
| ORC | Ombudsman Resource Center |
| ORC | Operations Requiring Consent (UK) |
| ORC | Office of Regulatory Compliance |
| ORC | Online Rights Canada (grassroots organization) |
| ORC | Order of Railroad Conductors (early railroad union) |
| ORC | Orlando Road Club |
| ORC | Office of Radiation Control (Delaware) |
| ORC | Olin Responsible Care (Olin Corporation) |
| ORC | Overseas Resource Center |
| ORC | Outdoor Rental Center (various schools) |
| ORC | Orthogonality Restoring Combining |
| ORC | Office of the Regional Commissioner |
| ORC | Open Robot Controller |
| ORC | Office of Research Coordination |
| ORC | Omladinski Resursni Centar (Serbian: Youth Resource Center; Tuzla, Bosnia and Herzegovina) |
| ORC | Object/Component/Service-Oriented Real-Time Distributed Computing |
| ORC | Order of Canons Regular of the Holy Cross (religious order) |
| ORC | Organic Chemistry: Mechanism and Syntheses |
| ORC | Organization Responsibility Center |
| ORC | Ordnance Rocket Center |
| ORC | Organizational Resource Counselor |
| ORC | Ontario Regional Centre (London, Ontario, Canada) |
| ORC | Organisation Révolutionnaire Cubaine (French) |
| ORC | Operational Readiness Condition |
| ORC | Operating Review Committee |
| ORC | Orthopedics and Rehabilitation Centre (Da Nang, Vietnam) |
| ORC | Operation Ready Center |
| ORC | Operational Requirements Committee (various organizations) |
| ORC | Oxygen Release Compound(s) (e.g., magnesium peroxide, hydrogen peroxide) |