AGS

Businesses

• AGS Airports, owner of Aberdeen, Glasgow and Southampton airports
• AGS (motorcycle manufacturer), a motocross bicycle manufacturer
• AGS Entertainment, a film production company in India
• Alabama Great Southern Railroad, US
• Automobiles Gonfaronnaises Sportives, a defunct Formula 1 team

Educational institutions

Government and politics

• Alberta Geological Survey, Canada
• An Garda Síochána, the Irish police force
• Australian Government Solicitor

Societies

• Alpha Gamma Sigma (honor society)
• American Gem Society
• American Geographical Society
• American Geriatrics Society
• Atlantic Geoscience Society

Other organizations

• Alpha Gamma Sigma (fraternity)

Medicine

• Acute grass sickness, a horse disease
• Adrenogenital syndrome, resulting in hormone imbalance etc.
• Aicardi–Goutières syndrome, a rare genetic disorder with a variety of symptoms (neurological, development delays, skin rashes etc.)
• Alpha-gal syndrome, a meat allergy resulting from a tick bite

Military technology

• AGS-17, the Soviet-designed automatic grenade launcher
• AGS-30, successor of AGS-17
• Advanced Gun System
• Airborne Ground Surveillance, a class of military airborne radar systems
• Alliance Ground Surveillance
• Armored Gun System, or the M8 Armored Gun System light tank
• Surveying ship (AGS), a US Navy hull classification symbol

Other uses in science and technology

• Accessory gonadal structures, secondary organs or tissues supporting a reproductive system
• Adventure Game Studio, a development tool for graphic adventure games
• AGS, product prefix used by models of the Game Boy Advance SP
• Alternating Gradient Synchrotron, a particle accelerator
• Annualized Geothermal Solar, a passive building heating technology
• Apollo Abort Guidance System, a backup computer providing abort capability on the Apollo Lunar Module
• Silver sulfide (Ag₂S)