| Acronym | Definition |
|---|
| ORM | Object Relational Mapping |
| ORM | OSI (Open Systems Interconnection) Reference Model |
| ORM | Online Reputation Management |
| ORM | Object Relational Mapper |
| ORM | Operations Review Meeting (various companies) |
| ORM | Operational Risk Management |
| ORM | Outsourcing Relationship Management |
| ORM | Oklahoma Railway Museum (Oklahoma City, OK) |
| ORM | Object Role Modeling |
| ORM | Optically Remote Module |
| ORM | Object Relationship Modeling |
| ORM | Object Oriented Routing Model |
| ORM | Object Reference Model |
| ORM | Office of Review Management |
| ORM | Office of Recovery Management (various organizations) |
| ORM | Other Regulated Materials (US DOT) |
| ORM | Oak Ridges Moraine (Ontario, Canada landform) |
| ORM | Operational Risk Manager |
| ORM | Operating Resource Management |
| ORM | Ormuri (linguistics) |
| ORM | Oral Response Meeting |
| ORM | Oracle Role Manager |
| ORM | Only Real Music |
| ORM | OMBIL Regulatory Module (Operations & Maintenance Business Information Link) |
| ORM | Operational Resource Management |
| ORM | Operational Rules Model |
| ORM | Online Resource Management (AptitudeX.net International Pte Ltd) |
| ORM | Organizational Renewal Movement |
| ORM | Office of Radiation Measurement |
| ORM | Optically Remote Module (AT&T) |
| ORM | Optical Reference Measurement |
| ORM | Operations Response Management |
| ORM | Off-Route Mine |
| ORM | Optimal Resource Mapping |
| ORM | Ontologies Reasoning and Modularity |