| Acronym | Definition |
|---|
| OCR | Optical Character Recognition |
| OCR | Optical Character Reader |
| OCR | Office for Civil Rights |
| OCR | Office of Civil Rights |
| OCR | Orange County Register (newspaper) |
| OCR | Obstacle Course Racing |
| OCR | Official Cash Rate |
| OCR | Oxygen Consumption Rate |
| OCR | Online Course Review (various universities) |
| OCR | On-Campus Resources (college recruitment) |
| OCR | Original Cast Recording |
| OCR | Ossicular Chain Reconstruction (ear surgery) |
| OCR | Oracle Cluster Registry |
| OCR | Output Control Register |
| OCR | Object Clock Reference |
| OCR | Optical Core Router |
| OCR | Overcommitment Ratio |
| OCR | Olympic Classes Regatta (various locations) |
| OCR | On-Campus Recruitment |
| OCR | Own Credit Risk |
| OCR | Office of Community Relations |
| OCR | Ottawa Central Railway |
| OCR | Office of Civilian Requirements (US Navy) |
| OCR | Old Country Road |
| OCR | Office of Congressional Relations (OPM) |
| OCR | Overall Capitalization Rate (real estate) |
| OCR | Omnicare Clinical Research (Omnicare, Inc.) |
| OCR | Open Collaborative Research |
| OCR | Office of Coordinating Responsibility |
| OCR | Old Christian Radio |
| OCR | Official Court Reporter |
| OCR | Online Community Relations (gaming site) |
| OCR | Office of the Commissioner of Railroads |
| OCR | Over Current Relay (power distribution) |
| OCR | O'Connell Racing (car racing) |
| OCR | Oil Circuit Recloser |
| OCR | Off the Cuff Remark |
| OCR | Office of Collateral Responsibility |
| OCR | Overclocked Remixes |
| OCR | Office of Coal Research |
| OCR | Outstanding Claims Reserve (insurance) |
| OCR | On-Channel Repeater |
| OCR | One-Call Resolution |
| OCR | Operating Conditions Register |
| OCR | Operations Change Request |
| OCR | Organizational Change Request |
| OCR | Oxford, Cambridge & RSA Examinations (UK) |
| OCR | Operational Capability Requirements |
| OCR | Outgoing Call Restriction |
| OCR | Obligational Contractual Relations (customer-supplier model) |
| OCR | Office of Coordinating Responsibility (US DoD) |
| OCR | Organization Change Request |
| OCR | Off-Color Remark |
| OCR | Open Care Record (medicine) |
| OCR | Optical Control Room |
| OCR | Orange County Raptors (lacrosse club; Montgomery, NY) |
| OCR | Operational Change Report |
| OCR | Organizational Capability Review |
| OCR | Office Claim Representative |
| OCR | Outage Capacity Region |
| OCR | Open Cycle Ratio (mechanics) |
| OCR | Outer Cell Region |