ETS or ets may refer to:
Climate change, environment and economy Emissions trading scheme European Union Emission Trading Scheme
Organisations European Thermoelectric Society Evangelical Theological Society
Education École de technologie supérieure, an engineering school in Montreal, Canada Educational Testing Service, an American assessment organization Educational and Training Services Branch, of the British Army European Theological Seminary, in Kniebis, Germany
Science and technology Endoscopic thoracic sympathectomy Enhanced Transmission Selection Enterprise test software Enterprise Transport Security, in computer security Environmental tobacco smoke Episodic tremor and slip ETS transcription factor family External transcribed spacer
Transport East Tsim Sha Tsui station, of the Mass Transit Railway, Hong Kong Edmonton Transit Service, Alberta, Canada Electric train supply, which powers auxiliary systems on rail vehicles Enterprise Municipal Airport (Alabama) Eureka Transit Service, California, US Euskal Trenbide Sarea, a railway infrastructure company in the Basque Country, Spain KTM ETS, a high-speed train service in Malaysia
Other uses Euro Truck Simulator, video game Afenmai language (ISO 639-3 code) European Training Strategy, of the European Commission Marie Hall Ets (1895–1984), American writer and illustrator Expiration of Term of Service, in US military separation