| Acronym | Definition |
|---|
| BUG | Backpackers' Ultimate Guide (travel guide series) |
| BUG | BCL (Binary Control Language) Users Group |
| BUG | Back Up Gun |
| BUG | BSD User Group (Berkeley software distribution OS family UNIX-based) |
| BUG | Bsd User'S Group |
| BUG | Borland User Group |
| BUG | Back Up Generator (Boeing 777) |
| BUG | Bicycle User Groups |
| BUG | Bringing Up Grades (school program) |
| BUG | Banner Users Group |
| BUG | Backlight, Uplight and Glare (outdoor lighting) |
| BUG | Brooklyn Union Gas Company |
| BUG | Bottom-Up Greedy (pre-assignment technique) |
| BUG | BeOS Users Group |
| BUG | Benthic Unattended Generator (Microbial Fuel Cell) |
| BUG | Big Ugly Goof (programming mistake) |
| BUG | Boulder Colorado .NET User Group (Boulder, CO) |
| BUG | Beer Users Group (various locations) |