FSII
| Acronym | Definition |
|---|---|
| FSII | Fuel System Icing Inhibitor (MIL-I-27686) |
| FSII | Feng Shui Institute International (Canal Winchester, OH) |
| FSII | Food Safety Information Infrastructure (Food Safety Research Consortium; Gainesville, FL) |
| FSII | Fisher Scientific International Inc. (Thermo Fisher Scientific Inc.) |