| Acronym | Definition |
|---|
| GBSL➣Gozo Business Systems Ltd. (EU) |
| GBSL➣Greater Bethlehem Soccer League (Pennsylvania) |
| GBSL➣Gulf Beach Setback Line (est. 1978; coastal construction control line; Sarasota County, FL) |
| GBSL➣Gibbs Business Solutions Ltd. (East Lothian, Scotland, UK) |
| GBSL➣Grand Bahama Shipyard Ltd. (Freeport, Bahamas) |
| GBSL➣General Blue Sensitivity Loss |