| 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 |