NCS may refer to: Biology and chemistry N-Chlorosuccinimide, an organic chemical Neotenic complex syndrome Nerve conduction study, a medical diagnostic test Neuronal calcium sensor, a family of proteins Thiocyanate, an organic compound in the cyanate family Computers and technology Network Computing System, an implementation of the Network Computing Architecture at Apollo Computer Network-based Call Signaling, a protocol used with VoIP Networked control system Geography Norwegian continental shelf, the continental shelf of Norway Organizations National Cartoonists Society, US National Center for Simulation, US defense technologies association National Children's Study, US cohort study National Citizen Service, voluntary service for 16-17-year-olds in England National Clandestine Service, later Directorate of Operations (CIA), US National Crime Squad, a former British police organisation National Communications System, a former US agency National Compensation Survey, US National Convenience Stores, a US company Naval Canteen Service, the Royal Navy branch of the NAAFI NCS Group, formerly National Computer Systems, Singapore North Carolina Symphony, based in Raleigh, North Carolina North Coast Section, an athletic organization in California, US Nippon Computer Systems NoCopyrightSounds, a British record label Schools and universities National Cathedral School in Washington, D.C. National Cryptologic School, of the U.S. National Security Agency Navy Children School, India Newark Charter School in Newark, Delaware, US Newham Collegiate Sixth Form Centre in London, England Northland Christian School in Houston, Texas, US North Cestrian School in Altrincham, Greater Manchester, England Social care National Care Service, proposed social care service in the United Kingdom Standards National CAD Standard, US NATO Codification System, for items of supply Natural Color System, a proprietary color model Television NCS: Manhunt, a British crime drama series from 2001-2002 Transport Newark City Subway, New Jersey, US North Central Service, a rail line in Chicago, Illinois, US