GWSC
| Acronym | Definition |
|---|---|
| GWSC | Ghana Water and Sewerage Corporation (Ministry of Works and Housing; Ghana) |
| GWSC | Glen Waverley Secondary College (Melbourne, Victoria, Australia) |
| GWSC | Great Western Steamship Company (est. 1837; UK) |
| GWSC | Grafham Water Sailing Club (UK) |
| GWSC | Golden West Swim Club (Huntingdon Beach, CA) |
| GWSC | Global Warming Shareholder Campaign |