GBSL
| 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 |