CES, ces, Ces, or CEs may refer to:
Technology Circuit Emulation Service, a telecommunication technology Cryogenic energy storage Character encoding scheme, a reversible transformation of sequences of code units to sequences of bytes Charge-exchange spectroscopy, a diagnostic used in plasma physics
Companies ICAO Code designator for China Eastern Airlines
Medicine Cauda equina syndrome, a serious neurological condition Cranial electrotherapy stimulation, therapeutic brain stimulation Camurati-Engelmann disease, also called "Camurati Engelmann syndrome" (CES) Carboxylesterase, an enzyme that catalyzes the reaction between a carboxylic ester and water
Organizations Caspian Engineers Society Center for Economic Studies, LMU Munich Center for Ethical Solutions, bioethics think tank in the United States Centre for Environmental Studies, former UK research organization Church Educational System, of The Church of Jesus Christ of Latter-day Saints Coalition for Economic Survival, a Los Angeles–based community organization Coalition of Essential Schools, US educational reform Community Exchange System, international Internet trading network Commonwealth Employment Service, former Australian Government employment agency Confédération Européenne de Scoutisme or Confederation of European Scouts Consumer Electronics Show, an annual technology trade show in Las Vegas, Nevada, United States Centre for European Studies (disambiguation), the name of several educational institutions Center for Election Science, a US-based approval voting advocacy organization
People Jean Ces, French boxer of the 1920s
Transportation Central South station, a proposed MTR station in Hong Kong Cessnock Airport, IATA airport code "CES" Cressing railway station, British railway station with station code CES
Other uses Closed ecological system, isolated from the outside Clean Energy Standards, part of the climate change policy of the United States Constant elasticity of substitution, in economics, a feature of a particular class of production function The ISO 639 code for the Czech language