| 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 |