GBSS
| Acronym | Definition |
|---|---|
| GBSS | Gold Bullion Securities |
| GBSS | Granule-Bound Starch Synthase (enzyme) |
| GBSS | Group B Strep Support (UK charity) |
| GBSS | Grenada Boys Secondary School |
| GBSS | Geodetic Base Station Software (Thales Navigation, Inc.) |
| GBSS | Georgian Bay Secondary School |
| GBSS | Global Business Systems Solutions |