ECS

ECS may refer to:

Education

 * Education Commission of the States, in the United States
 * Engleside Christian School, in Alexandria, Virginia, United States
 * Etowah City School in Etowah, Tennessee, United States
 * Evangelical Christian School, in Memphis, Tennessee, United States
 * Evangelical Christian School (Fort Myers, Florida)
 * Evansville Christian School, in Evansville, Indiana, United States
 * Everett Christian School, in Everett, Washington, United States
 * Miss Edgar's and Miss Cramp's School, in Westmount, Quebec, Canada
 * School of Education, Communication and Society, King's College London, United Kingdom
 * School of Electronics and Computer Science, University of Southampton, United Kingdom

Science

 * Electrochemical Society, a learned society
 * Embodied cognitive science
 * Endocannabinoid system
 * Equilibrium climate sensitivity
 * European Calcium Society

Technology

 * Amiga Enhanced Chip Set, a chipset used in several Amiga computers
 * eComStation, a computer operating system based on OS/2
 * Edinburgh Concurrent Supercomputer
 * EDNS Client Subnet
 * Elitegroup Computer Systems, a Taiwanese electronics firm
 * Emergency communication system
 * Enterprise cognitive system
 * Entity component system, a software architecture pattern
 * Environmental control system

Transport

 * Eccles Road railway station, Breckland, England (National Rail station code)
 * Empty coaching stock, in rail transport
 * Estuary Crossing Shuttle, a bus service in Oakland, California
 * Metrovagonmash Ečs, a Russian multiple unit used in the Prague Metro

Other uses

 * East Coast Swing
 * Écs, a village in Hungary
 * Ecuadorian Sign Language
 * European Solidarity Centre
 * Ecuadorian sucre, a former currency of Ecuador
 * Emerald City Supporters, a supporters' group for the Seattle Sounders soccer club
 * Entertainment Crew & Sport, a section of the Media, Entertainment and Arts Alliance, Australia
 * Esports Championship Series