| Acronym | Definition |
|---|
| OMR | Omani Rial (ISO currency code) |
| OMR | Optical Mark Recognition |
| OMR | Optical Mark Reader |
| OMR | One More Round (gaming) |
| OMR | Old Mahabalipuram Road (Chennai, India) |
| OMR | Oracle Management Repository |
| OMR | Operation, Maintenance and Repair |
| OMR | Office of Mine Reclamation (California) |
| OMR | Oracle Management Repository (database) |
| OMR | Otago Mounted Rifles (New Zealand) |
| OMR | Ordures Ménagères Résiduelles (French: Residual Household Waste) |
| OMR | Ontario Medical Review (journal; Canada) |
| OMR | Office Market Report (Australia) |
| OMR | Oh My Rowling! |
| OMR | Original Master Recording |
| OMR | Office of Maritime Resources (New Jersey) |
| OMR | Offshore Music Radio |
| OMR | Oradea, Romania - Oradea (Airport Code) |
| OMR | Offline Mail Reader (software) |
| OMR | Online Medical Registry (health profiles) |
| OMR | Organic-Moderated Reactor |
| OMR | Optical Mark Readable |
| OMR | Operational Management Review |
| OMR | Outgoing Mail Record |
| OMR | Officer Master Record |
| OMR | Overhaul, Maintenance, and Repair |
| OMR | Outcomes Management & Research |
| OMR | Old Men Rule |
| OMR | Order Management Representative (various locations) |
| OMR | Overriding Method Removal |
| OMR | Organizational Metrics Repository (database) |