CES

CES may stand for:

Closed ecological system, isolated from the outside
Clean Energy Standards
Constant elasticity of substitution, in economics, a feature of a particular class of production function
The ISO 639 code for the Czech language
CES, annual technology trade show in Las Vegas produced by the Consumer Technology Association

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

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

Caspian Engineers Society
Center for Economic Studies, University of 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
Centre for European Studies (disambiguation), the name of several educational institutions
Center for Election Science, a US-based approval voting advocacy organization