| ORM | O/R mapping 
| Others |
| ORM | Oak Ridges Markham
| Others |
| ORM | Oak Ridges Moraine
| Others |
| ORM | Object Oriented Routing Model
| Others |
| ORM | Object Recognition Module
| Others |
| ORM | Object Reference Model
| Others |
| ORM | Object Relation Mapping
| Others |
| ORM | Object Relational Manager
| Others |
| ORM | Object Relational Mapper
| Others |
| ORM | Object Relational Mapping
| Others |
| ORM | Object Relational Model
| Others |
| ORM | Object Relationship Mapping
| Others |
| ORM | Object Relationship Modeling
| Others |
| ORM | Object Role Model
| Others |
| ORM | Object Role Modeling
| Others |
| ORM | Object to Relational Mapping
| Others |
| ORM | Object-Relational Mapping
| Others |
| ORM | Object-Role Modeling
| Others |
| ORM | Observatorio del Roque de los Muchachos
| Others |
| ORM | Occupational Risk Management
| Others |
| ORM | Off Road Mode
| Others |
| ORM | Off-Route Mine
| Others |
| ORM | Office of Resolution Management
| Others |
| ORM | Office of Resource Management
| Others |
| ORM | Office of Review Management
| Others |
| ORM | Office of Risk Management
| Others |
| ORM | OGC Reference Model
| Others |
| ORM | Olympic Resource Management
| Others |
| ORM | One Rep Max
| Others |
| ORM | Ongoing Responsibility for Medicals
| Others |
| ORM | Ongoing Responsiblity for Medicals
| Others |
| ORM | Online Realtime Magic
| Others |
| ORM | Online Relationship Marketing
| Others |
| ORM | Online Reputation Management
| Others |
| ORM | Operating Resource Management
| Others |
| ORM | Operational Risk Management
| Others |
| ORM | Optical Reference Measurement
| Others |
| ORM | Optically Remote Module
| Others |
| ORM | Optimum Resonant Materials
| Others |
| ORM | Oral Rehydration Mixture
| Others |
| ORM | Organizational Research Methods
| Others |
| ORM | Orion Metals Limited
| Others |
| orm | Oromo
| Others |
| ORM | Orosomucoid
| Others |
| ORM | Other Regulated Material
| Others |
| ORM | Other Regulated Materials
| Others |
| ORM | Other Reportable Material
| Others |
| ORM | Outside Rearview Mirror
| Others |
| ORM | Owens Realty Mortgage
| Others |
| ORM | Sywell Aerodrome Airport
| Others |