FSTD
| Acronym | Definition |
|---|---|
| FSTD | Frequency Switched Transmit Diversity (electrical engineering) |
| FSTD | Flight Simulation Training Device |
| FSTD | Fonds de Soutien aux Territoires en Difficultés (French: Fund to Support Territories in Difficulty; Canada) |
| FSTD | Finite-State Transition Diagram |
| FSTD | Fire Support Test Directorate |
| FSTD | Facility-Specific Training Directory |
| FSTD | Fast Stock Time of Day (racing term) |