| Acronym | Definition |
|---|
| GUG➣Gimp User Group |
| GUG➣Groupware User Group |
| GUG➣Global User Group |
| GUG➣Going Under Ground |
| GUG➣Girls Under Glass (band; Germany) |
| GUG➣Guanine-Uracil-Guanine (DNA) |
| GUG➣Gruppo Ufficiali Gara (Italian: Race Officers Group) |
| GUG➣Good Urban Governance (UN campaign) |
| GUG➣General User Guide |
| GUG➣Ground Up Graphics (computer game programming group) |
| GUG➣Grand Unified Game (puzzle game) |