FSDE
| Acronym | Definition |
|---|---|
| FSDE | Free State Department of Education (South Africa) |
| FSDE | Federação Sergipana de Desportos Escolares (Portuguese; Brazilian sports school association) |
| FSDE | Feng Shui Design & Engineering (EU) |
| FSDE | Freiwillige Soziale Dienste Europa (German: Voluntary Social Services Europe) |
| FSDE | Frequency-Shift Division Encoder |