AGS can refer to:

• AGS, three-letter code for Augusta Regional Airport in Augusta, Georgia, USA
• AGS, The National Rail code for Argyle Street railway station, United Kingdom
• Adventure Game Studio, software for creating point-and-click adventure games
• AGS, the product code for Nintendo's Game Boy Advance SP
• Cisco AGS, a network router model popular in the early 1980s
• Alternating Gradient Synchrotron, a particle accelerator-collider complex located in USA
• AGS, (Annualized Geothermal Solar) heating, combining passive solar and geothermal heating techniques
• AGS, ESRI ArcGIS Server

Military:

• AGS, United States Air Force Aircraft Generation Squadron
• AGS, the US Navy hull classification symbol for Surveying Ship
• Advanced Gun System
• M8-AGS, the M8 Armored Gun System
• AGS-17, the Soviet-designed automatic grenade launcher

Biology:

• Antigens (Ags), targets of immune response

Chemistry:

• Ag₂S, Silver sulfide

Organizations, societies, companies:

• Alabama Great Southern Railroad
• Alberta Geological Survey
• American Gem Society
• American Geographical Society
• Americans For Gun Safety Foundation
• Australian Government Solicitor
• Alpha Gamma Sigma, an honor society in California
• Automobiles Gonfaronnaises Sportives, a defunct Formula 1 team
• Alliance for Green Socialism, a political party in Britain
• American Gita Society, see International Gita Society
• American Gerbil Society, the pedigree gerbil breeding organization in the United States

Educational institutions:

• Airline Ground Schools
• Aberdeen Grammar School
• Adams' Grammar School
• Aireborough Grammar School
• Alcester Grammar School
• Allan Glen's School
• Alliance Graduate School
• American Graduate School of International Relations and Diplomacy
• Arkansas Governor's School
• Auckland Grammar School
• Aylesbury Grammar School
• Antrim Grammar School

Medical terms:

• Adrenogenital syndrome
• Alagille syndrome, a multisystem disorder involving primarily the liver, heart, eyes, face, and skeleton

Place

• Aguascalientes, Mexican state

Other

• Ag is also used in short form for the term Aggies
• Airborne Ground Surveillance a class of military airborne radar system used for detecting and tracking ground targets, such as vehicles and slow moving helicopters.
• Alliance Ground Surveillance a NATO programme to acquire an Airborne Ground Surveillance capability

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