SGS

SGS may refer to :

 Shadow Government Statistics, a website and economic consulting firm run by economist John Williams
 South Georgia and the South Sandwich Islands: ISO 3166 trigram
 South Georgia Survey, four expeditions (1951–1957) led by V. Duncan Carse which mapped the South Georgia Antarctic archipelago
 Strong generating set, a concept in the group theory of mathematics
 Sisters of the Good Samaritan
 Search Guard Successor Foundation, a fictional organization in the Japanese Super Sentai show GoGo Sentai Boukenger
 Satellite ground station
 Serbian Genealogical Society
 Saudi Geological Survey
 Samsung Galaxy S, an Android smartphone
 Styling Garage, a German tuner and coachbuilder active in the 1980s
 Super Girl Seven the protagonists of Supergirl (Japanese TV series)
 Śūraṅgama Samādhi Sūtra
 ISO 639-3 code for the Samogitian dialect

Companies
 SGS S.A. (formerly Société Générale de Surveillance), a Swiss company providing inspection, verification, testing and certification services
 Società Generale Semiconduttori - Aquila Tubi E Semiconduttori (SGS-ATES, "Semiconductor General Society - Tubes and Semiconductors Aquila"), later SGS Microelettronica, a former Italian company now merged into STMicroelectronics

Schools
 St. George's School (disambiguation)
 Seattle Girls' School
 Sligo Grammar School
 Slough Grammar School
 South Gloucestershire and Stroud College
 Spalding Grammar School
 Stafford Grammar School
 Steyning Grammar School
 Stockport Grammar School
 Stretford Grammar School
 Sutton Grammar School
 Sydney Grammar School