HGSA
| Acronym | Definition |
|---|---|
| HGSA | History Graduate Student Association (various schools) |
| HGSA | Human Genetics Society of Australasia |
| HGSA | Hospital Geral de Santo António (Porto, Portugal) |
| HGSA | Holmer Green Sports Association (UK) |
| HGSA | Hamilton Girls Softball Association (est. 1992; Mercerville, NJ) |
| HGSA | Henderson Girls Softball Association (Nevada) |