KCS

KCS may refer to:

Schools

 * Kanawha County Schools, West Virginia
 * Kennet School, a state school in south east England
 * Kihei Charter School, in Kihei, Maui, Hawaii
 * King's College School, an independent day school in south west London, England
 * King's College School, a day school in Madrid, Spain operated by King's Group
 * Kingsford Community School, an east London secondary school

Science and technology

 * Keratoconjunctivitis sicca
 * Killed carbon steel
 * kilocycles per second, another name for kilohertz
 * Kansas City standard, a standard for encoding binary data on tape used by many early microcomputers
 * Knowledge-centered support, a service delivery method
 * Keyboard Controller Style, an interface often used in the Intelligent Platform Management Interface architecture
 * Korean Chemical Society
 * Very-long-chain 3-oxoacyl-CoA synthase, an enzyme

Other

 * Czechoslovak koruna, a unit of currency abbreviated Kcs
 * Clinical Centre of Serbia, a medical center in Serbia, third largest in the world
 * Kansas City Southern Railway, an American railroad
 * Kansas City Southern (company), its parent company
 * KCSF, formerly KCS radio station
 * King's Colour Squadron, the unit of the RAF that safeguard's the King's Colour.