FTSA
| Acronym | Definition |
|---|---|
| FTSA | Financial Time Series Analysis |
| FTSA | Faculdade Teológica Sul Americana (Brasil) |
| FTSA | Federal Transportation Security Administration |
| FTSA | France Telecom, Société Anonyme (French: France Telecom Limited Company) |
| FTSA | First Technology Safety and Analysis |
| FTSA | Foundation to Save Abandonware |
| FTSA | Fault Tolerant System Architecture |
| FTSA | Foil-Type Spiral Antenna |
| FTSA | Seaman Apprentice, Fire Control Technician Striker (Naval Rating) |