AIS, Ais, or ais may refer to:

As a word[link]

• Ais people, a Native American tribe living on the Treasure coast of Florida, United States which had completely disappeared by the mid-18th Century.
• Plural of:
  • ai (disambiguation)
  • AI (Artificial Intelligence)

As an abbreviation[link]

Medicine[link]

• Androgen Insensitivity Syndrome, a group of disorders of sex development in humans
• Abbreviated Injury Scale

Organizations[link]

• Advanced Info Service, Thailand's largest GSM mobile phone operator
• Akademio Internacia de la Sciencoj San Marino, a scientific association/university in San Marino, San Marino
• American International School (disambiguation), a name common to several schools in a variety of countries
• American Internet Services, a colocation and ISP based in San Diego, California, United States
• Armée islamique du salut (Islamic Salvation Army), the former military wing of the Islamic Salvation Front in Algeria
• Association for Information Systems, an international professional organization
• Atlanta International School, a private school located in Atlanta, Georgia, United States
• Australian Information Service, a former Australian governmental organization, disbanded in 1986
• Australian Institute of Sport, an Australian educational institution headquartered in Canberra
• Australian International School (disambiguation), a name common to several schools in a variety of countries
• Aviatsionnaya Ispitatelnaya Stantsiya, a Russian naval aviation station which produced aircraft during World War I

Software and technology[link]

• Accounting information system, a (usually computerized) system for recording, managing, and reporting accounting data
• Aeronautical Information Service, a service providing information necessary for international air navigation, e.g. Aeronautical Information Publication (AIP), NOTAM, etc.
• Alarm indication signal, a signal transmitted by a system that is part of a communications link to let the receiver know that some part of the link has failed. Some types of AIS signals are:
  • alarm indication signal line (AIS-L)
  • alarm indication signal path (AIS-P)
• Application Interface Specification, a technical specification defined by the Service Availability Forum
• Artificial immune system, a computational system inspired by the principles and processes of the vertebrate immune system's characteristics of learning and memory
• Automatic Identification System, a navigation system for locating, identifying and tracking marine vessels (ships)
• Automated information system, a system which is capable of providing information automatically, usually using computer hardware, software, firmware, or any combination of these
• Automotive Industry Standards, automotive technical regulations of India

Other[link]

• The Apples in Stereo, an American rock band
• Arorae Island Airport, Arorae, Kiribati (IATA code)

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