ETS
- Afenmai language
- ETS transcription factor family
- East Tsim Sha Tsui station
- Edmonton Transit Service
- Educational Testing Service
- Educational and Training Services Branch
- Electric train supply
- Emissions trading scheme
- Endoscopic thoracic sympathectomy
- Enhanced Transmission Selection
- Enterprise Municipal Airport (Alabama)
- Enterprise Transport Security
- Enterprise test software
- Environmental tobacco smoke
- Episodic tremor and slip
- Eureka Transit Service
- Euro Truck Simulator
- European Theological Seminary
- European Thermoelectric Society
- European Training Strategy
- European Union Emission Trading Scheme
- Euskal Trenbide Sarea
- Evangelical Theological Society
- External transcribed spacer
- KTM ETS
- Marie Hall Ets
- École de technologie supérieure