GUN
| Acronym | Definition |
|---|---|
| GUN | Gunner |
| GUN | Gunfighters (gaming organization) |
| GUN | General Union of the Nuba Mountains (aka General Union of Nuba; Sudanese political group) |
| GUN | Great Unlimited Noises (record label; Germany) |
| GUN | Gamersunitednetwork (pc-games website) |
| GUN | Geeks United Northwest (online gaming community) |
| GUN | Guardian Units of Nation (Sonic Adventure 2, gaming) |
| GUN | General Usage Network |