| Acronym | Definition |
|---|
| RUG | Rugby (Amtrak station code; Rugby, ND) |
| RUG | Rijksuniversiteit Groningen (Netherlands) |
| RUG | Universiteit Gent (Ghent University; formerly Rijksuniversiteit Gent; Gent, Belgium) |
| RUG | Regular Unleaded Gas |
| RUG | Rijksuniversiteit Gent |
| RUG | Really Useful Guide |
| RUG | Regional User Group |
| RUG | Resource Utilization Group |
| RUG | Ruby Users Group (various locations) |
| RUG | RXTE (Rossi X-Ray Timing Explorer) User Group |
| RUG | Regular Unleaded Gasoline |
| RUG | Regionale Uitgeversgroep NV |
| RUG | Retrograde Urethrogram |
| RUG | Radar Upgrade |
| RUG | Rational Users Group (software) |
| RUG | Reference User Group |
| RUG | Resource Utilization Grouping |
| RUG | Resource Utilization Gathering |
| RUG | Representatives Users Group |