GCS

GCS may refer to:

Cartography

 * Galactic coordinate system
 * Geographic coordinate system

Computing

 * Game creation system
 * Gauss Centre for Supercomputing, in Germany
 * Google Cloud Storage
 * Group communication system
 * Group Control System, an IBM VM Operating system component

Education

 * Gadsden County School District, in Florida, United States
 * Gallantry Cross, Silver, an honour of the Republic of Venda
 * Gaston Christian School, in Lowell, North Carolina, United States
 * German Church School, in Addis Ababa, Ethiopia
 * Glenelg Country School, in Ellicott City, Maryland, United States
 * Gorey Community School, in County Wexford, Ireland
 * Government College of Science, Lahore, Pakistan
 * Grace Christian School (Florida), in Valrico, Florida, United States
 * Grace Church School, in New York City
 * Granville County Schools, in North Carolina, United States
 * Greenfield Community School, in Dubai
 * Greenville Christian School, in Mississippi, United States
 * Greenwood College School, in Toronto, Ontario, Canada
 * Guadalupe Catholic School, in Makati, Philippines
 * Guildford County School, in England

Medicine

 * Gamma-glutamylcysteine synthetase
 * Gender confirming surgery
 * Glasgow Coma Scale
 * Glucocorticosteroids
 * Glycine cleavage system

Other uses

 * General Campaign Star (Canada), a Canadian Forces medal
 * Grand Central Station, in New York City
 * Satellite ground control station
 * UAV ground control station
 * Global Civic Sharing, a South Korean charity
 * Global Combat Ship, of the Royal Navy
 * Gold Coast Suns, an Australian Football League team
 * Green Cove Springs, Florida