| Acronym | Definition |
|---|
| RMI | Remote Method Invocation |
| RMI | Republic of the Marshall Islands |
| RMI | Revenu Minimum d'Insertion (French: Minimum Income of Insertion) |
| RMI | Rocky Mountain Institute (Snowmass, Colorado, USA) |
| RMI | Risk Management and Insurance |
| RMI | Remote Memory Interface |
| RMI | Remote Mode Indicators |
| RMI | Remote Messaging Interface |
| RMI | Radio Magnetic Indicator |
| RMI | Remote Medical International (Seattle, WA) |
| RMI | Royal Mail International (UK) |
| RMI | Retail Motor Industry Federation (usually seen as RMIF) |
| RMI | Remodeling Market Index |
| RMI | Repetitive Motion Injury |
| RMI | Relationship Management International (finance; various locations) |
| RMI | Royal Meteorological Institute (Belgium) |
| RMI | Risk Management Information |
| RMI | Russel Metals, Inc. (Canada) |
| RMI | Rich Media Institute (professional education) |
| RMI | Regis McKenna, Inc. (California) |
| RMI | Records Management Initiative (US National Archives) |
| RMI | Remote Management Interface |
| RMI | Retail Management Institute (Santa Clara University) |
| RMI | Railway Mechanics Institute (various organizations) |
| RMI | Reactive Metals Inc. |
| RMI | Rocky Mountain Internet, Inc. |
| RMI | Resource Manager Interface |
| RMI | Rack Manufacturers Institute, Inc. |
| RMI | Rudolf Magnus Institute of Neuroscience (Utrecht, Netherlands) |
| RMI | Repair, Maintenance & Improvement |
| RMI | Regional Median Income (various locations) |
| RMI | Religious of Mary Immaculate (religious order) |
| RMI | Registered Mold Inspector |
| RMI | Radar Mile |
| RMI | Rehabilitation Management Inc. (Canada) |
| RMI | Raw Materials Index |
| RMI | Royal Military Institute |
| RMI | Radiation Monitoring Instructions |
| RMI | Receiving Module Identification |
| RMI | RIFF (Resource Interchange File Format) MIDI (audio file format extension) |
| RMI | Renovation Maintenance Improvement (housing and construction) |
| RMI | Rack Mount Instrument (JTAG Technologies) |
| RMI | Réalisations Médicales et Industrielles (French: Medical and Industrial Achievements) |
| RMI | Revista Monumentelor Istorice (Romanian: Historical Monuments Magazine) |