GBX
| Acronym | Definition |
|---|---|
| GBX | Gear Box |
| GBX | Greenbrier Companies, Inc. |
| GBX | Gigabit Express |
| GBX | Global Business Exchange |
| GBX | Gravity Board X (forum software) |
| GBX | George Bowie Experience (disc jockey) |
| GBX | Gameboy eXtreme (emulator) |
| GBX | Great British Pence (stocks currency) |