| 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 |