| Abbreviation | Definition |
|---|---|
| RUG | Really Ugly Game |
| RUG | Really Useful Groups |
| RUG | Reference User Group |
| RUG | Regular Unleaded Gasoline |
| RUG | Relative Utilization GroupResource |
| RUG | Remote User Gateway |
| RUG | Resource Utilization Groups |
| RUG | Ridgecrest Users Group |
| RUGM | Rotary ultrasonic grinding machining |
| RUGM | Rubert Uziel Garduno Martinez |
| RUH | Rear Udder Height |
| RUH | Ridiculously Unbelievably Happy |
| RUH | Rūḥ |
| RUH | Soul |
| RUHS | Rajasthan University of Health Sciences |
| RUI | Reading Under the Influence |
| RUI | Recording User Input |
| RUI | RegeoNT User Interface |
| RUI | relative usage of imported |
| RUI | relative use of imported |