| Acronym | Definition |
|---|
| RUC | Royal Ulster Constabulary (Northern Ireland; now the Police Service of Northern Ireland) |
| RUC | Roskilde Universitetscenter (German: Roskilde University Center; now Roskilde Universitet) |
| RUC | Renmin University of China |
| RUC | Re-Usable Component |
| RUC | Receive Unknown Code |
| RUC | Registro Unico de Contribuyentes (Uruguay: Unique Taxpayer Register) |
| RUC | Rapid Update Cycle (weather forecast model) |
| RUC | Redeemer University College (Canada) |
| RUC | Road User Charging |
| RUC | Roaden University Center (Tennessee Tech University) |
| RUC | Rádio Universidade de Coimbra |
| RUC | Republican Unity Coalition (Washington, DC) |
| RUC | Reporting Unit Code |
| RUC | Representative Unit Cell |
| RUC | Riverine Utility Craft |
| RUC | Responsable Univers de Consommation (French: Responsible Consumption Universe) |
| RUC | Resource Utilization Charge |
| RUC | Reims Université Club d'Escalade (French: Reims University Climbing Club) |
| RUC | RVS (Relative Value Scale) Update Committee (AMA/Specialty Society) |