| Acronym | Definition |
|---|
| GCSL➣Global Consultants and Services Limited (Hong Kong) |
| GCSL➣Greater Charlotte Swim League (Charlotte, NC) |
| GCSL➣Greater Columbus Swim League (Columbus, OH) |
| GCSL➣Gwinnett County Swim League (Georgia) |
| GCSL➣General Chemical State Laboratory (est. 1929; Greek Ministry of Finance) |
| GCSL➣Gulf Coast Seafood Laboratory (US FDA) |
| GCSL➣Gloucester County Soccer League (Sewell, NJ) |
| GCSL➣Graduate Colloquium on Slavic Linguistics |