HFSO
| Acronym | Definition |
|---|---|
| HFSO | Hungarian Food Safety Office |
| HFSO | Hamilton-Fairfield Symphony Orchestra (Hamilton, OH) |
| HFSO | Hungarian Foundation for the Study of Obesity |
| HFSO | Human Frontier Science Organization |
| HFSO | Han-Feng SciTech Online |
| HFSO | Hospital Financial Services Office |