| Term | Full Form | Category |
|---|---|---|
| HGCS | Harbour Grace Cold Storage | Others |
| HGCS | Hereditary Gynecologic Cancer Syndromes | Others |
| HGCS | Hickory Grove Christian School | Others |
| HGCS | Holly Grove Christian School | Others |
| HGCS | Howard Gardner Community School | Others |
| HGCS | Human Gene Connectome Server | Others |
| HGCS | Hydro Gardens Colorado Springs | Others |