| Acronym | Definition |
|---|
| RMU➣Risk Management Unit (various organizations) |
| RMU➣Robert Morris University (Moon Township, Pennsylvania) |
| RMU➣Regional Maritime University |
| RMU➣Rocky Mountain Underground (skiing) |
| RMU➣Remote Management Unit |
| RMU➣Resource Management Utility |
| RMU➣Remote Measurement Unit |
| RMU➣Ring Main Unit |
| RMU➣Removal Unit (Kyoto Protocol) |
| RMU➣Remote Management Unit (Oscilloquartz) |
| RMU➣Radio Management Unit |
| RMU➣Remote Monitoring Unit |
| RMU➣Rack Mount Unit |
| RMU➣Royal Motor Union (Belgium) |
| RMU➣Records Management Unit |
| RMU➣Rolla Municipal Utilities (Rolla, MO) |
| RMU➣Reproductive Medicine Unit |
| RMU➣Rajabhat Mahasarakham University (Thailand) |
| RMU➣Radiomessagerie Unilatérale (French paging service) |
| RMU➣Retail Merchandise Unit (mall cart) |
| RMU➣Réseau Métropolitain Universitaire (French: Metropolitan University Network; computer network) |
| RMU➣Remote Multiplexing Unit |
| RMU➣Resource Management Update |
| RMU➣Remote Maneuvering Unit |
| RMU➣Removable Memory Unit |
| RMU➣Refresh Memory Unit |
| RMU➣Revenue Management Unit |
| RMU➣Renovation, Modernisation and Updating |
| RMU➣Retrofit, Modification, or Upgrade (aeorspace) |
| RMU➣RAID Management Utility |
| RMU➣Runway Monitoring Unit |
| RMU➣Rate Measurement Unit |
| RMU➣Remote Magnetic Unit (solid state flux valve) |