AMS or Ams may refer to:

• Alenia Marconi Systems
• American Management Systems
• AMS (Advanced Music Systems)
• ams AG, semiconductor manufacturer
• AMS Pictures
• Auxiliary Medical Services

• Arthur Morgan School, North Carolina, US
• Hanoi – Amsterdam High School, Hanoi, Vietnam
• Army Medical School, US
• Academy of Military Science (People's Republic of China)
• Academy of Military Science (United States)
• Association of Muslim Schools, global
• Antwerp Management School

• Agricultural Marketing Service, US
• Army Map Service, US, later National Geospatial-Intelligence Agency
• Army Medical Services, UK

• Alma Mater Society of Queen's University, student society, Canada
• Alma Mater Society of the University of British Columbia, student society, Canada
• American Mathematical Society
• American Meteor Society
• American Meteorological Society
• American Montessori Society
• American Musicological Society
• The Ancient Monuments Society, England and Wales
• Association of Muslim Scholars

• Aboriginal Medical Service, an Indigenous Australian community-controlled health service in Sydney

• Sodium 2-anthraquinonesulfonate known as AMS
• Ammonium sulfate, sometimes abbreviated as AMS
• Allyl methyl sulfide
• Alpha-methylstyrene, a chemical intermediate
• Ammonium sulfamate, an herbicide

• Accelerator mass spectrometry
• AMS radiocarbon dating
• Aerosol mass spectrometry
• Alpha Magnetic Spectrometer, AMS-02
• Anisotropy of magnetic susceptibility

• Acute mountain sickness, a form of altitude sickness
• Altered Mental Status, see Altered level of consciousness
• Antimicrobial stewardship
• Ablepharon macrostomia syndrome, an autosomal dominant genetic disorder

• Address Management System of the US Postal Service
• Access Method Services
• Application Maintenance Support (see Software Maintenance)
• Association Management System

• Analog and mixed-signal, as in Verilog-AMS and VHDL-AMS
• Anti Missile Systems in missile defense
• Automatic milking systems in dairy farming

• Acquisition Management System issued by the US Federal Aviation Administration
• Additional Member System of voting
• Alan Michael Sugar, British businessman, uses initials for enterprises such as Amstrad
• American Samoa, UNDP code
• AMS, group of characters in The House of the Dead (series)
• Amsterdam (Amtrak station) in New York (Amtrak station code)
• Amsterdam Airport Schiphol (IATA airport code)
• Arbeitsmarktservice, Austrian employment agency
• Atlanta Motor Speedway
• Auto, Motor und Sport, a German automobile magazine
• A US Navy hull classification symbol: Ocean minesweeper (AMS)

This disambiguation page lists articles associated with the title AMS.
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