AIT or Ait may refer to:

Places Ait, a small island found in the middle of a river or lake Friesoythe, a town in Germany, known in Saterland Frisian name as Ait or Äit Ait, Uttar Pradesh, a town in India

Government American Institute in Taiwan, representative office of the U.S. in Taiwan Asylum and Immigration Tribunal, a former British UK tribunal

Education India Acharya Institute of Technology, in Bangalore Adichunchanagiri Institute of Technology, in Karnataka Adithya Institute of Technology, in Coimbatore Army Institute of Technology, in Pune

United States Advanced Individual Training, the second stage of United States Army Basic Training Aeromedical Isolation Team, of the US Army Medical Research Institute of Infectious Diseases Academy for Information Technology, a high school in Scotch Plains, New Jersey

Elsewhere Accra Institute of Technology, in Ghana Aichi Institute of Technology, in Toyota, Japan Aligarh Institute of Technology, in Karachi, Pakistan Aquincum Institute of Technology, a study abroad opportunity for North American undergraduates in Budapest, Hungary Asian Institute of Technology, in Pathum Thani, Thailand Athlone Institute of Technology, in Ireland Auckland University of Technology, formerly Auckland Institute of Technology, in New Zealand

Companies Africa Independent Television, a Nigerian broadcaster Ameritech, a former Regional Bell Operating Company that had NYSE ticker symbol AIT Applied Industrial Technologies, American distributor of bearings, adhesives and sealants Autel Intelligent Technology, a Chinese electric vehicle manufacturer

Organizations Agency for Instructional Technology, American non-profit distributor of educational TV programs Alliance Internationale de Tourisme, an international federation of motoring organisations Arts Initiative Tokyo, a non-profit collective of curators and art administrators Austrian Institute of Technology, a federal research facility in Austria

Other uses Advanced Imaging Technology, airport security screening technology Advanced Intelligent Tape, a former magnetic tape data storage format Agreement on Internal Trade, a trade agreement between Canadian governments Algorithmic information theory, a subfield of information theory and computer science Amiodarone induced thyrotoxicosis, a drug induced medical condition