| Acronym | Definition |
|---|
| Rum | Rumanian (linguistics) |
| Rum | Random Utility Model (economics) |
| Rum | Reference Unique de Mandat (French: Unique Mandate Reference) |
| Rum | Rational Use of Medicines |
| Rum | Recinto Universitario de Mayagüez |
| Rum | Resource Updating Manager (software) |
| Rum | Return Unwanted Medicines |
| Rum | Radio Universitaria do Minho (Portugal) |
| Rum | Real User Monitor (computing) |
| Rum | Recinto Universitario de Mayaguez |
| Rum | Roundup Ultra |
| Rum | Remote Underwater Manipulator |
| Rum | Remington Ultra Magnum (ammunition) |
| Rum | Republic of the Union of Myanmar |
| Rum | Remote User Multiplex |
| Rum | Remote Unit Manipulator/Monitor |
| Rum | Readiness Utilization Maintenance |
| Rum | Release Upgrade Manual |
| Rum | Rectilinear Uniform Motion |
| Rum | Resources & Unit Monitoring |
| Rum | Revenue Under Management (finance) |