EFST
| Acronym | Definition |
|---|---|
| EFST | Électricité Ferblanterie Sanitaire Thermique (French: Thermal Electricity Sanitary Plumber) |
| EFST | Essential Fire Support Task |
| EFST | East Fife Supporters' Trust (football club; UK) |
| EFST | Enseignement et Formation Scientifiques et Techniques (French: Scientific and Technical Education and Training) |
| EFST | Elora-Fergus Studio Tour (Canada) |