| Acronym | Definition |
|---|
| UDG | Universitat de Girona (Spain) |
| UDG | Universidad de Guadalajara (México) |
| UDG | Universidad de Granada (Spanish: University of Granada) |
| UDG | Ultimate DJ Gear (Netherlands) |
| UDG | User Defined Gateway |
| UDG | Universal Distribution Group |
| UDG | User Defined Graphics |
| UDG | User Defined Group |
| UDG | Unit Disk Graph (wireless communication) |
| UDG | Uracil DNA Glycosylases |
| UDG | Universal Distribution Group (Microsoft Exchange Server) |
| UDG | United Desert Gateway (El Centro, CA) |
| UDG | User Defined Graphic |
| UDG | Usability Design Group |
| UDG | Universal Database Grid (IBM) |
| UDG | Universal Display Group |
| UDG | User-Defined Gradient Index |