ATIS ATIS or Atis may refer to : Adventure Thru Inner Space Alliance for Telecommunications Industry Solutions Association of Translators and Interpreters of Saskatchewan Automatic Terminal Information Service Adirondack Trail Improvement Society Advanced Traveler Information System Automatic Transmission Identification System The Aeta , or Atis , an indigenous people who live in scattered , isolated mountainous parts of the Philippines . This page disambiguates a four-character combination . If an article link referred you to this page , you may wish to change the link to point directly to the intended article . Categories : Lists of four-character combinations In other languages : Deutsch | Nederlands 