AIT
- Academy for Information Technology
- Accra Institute of Technology
- Acharya Institute of Technology
- Adichunchanagiri Institute of Technology
- Adithya Institute of Technology
- Advanced Imaging Technology
- Advanced Intelligent Tape
- Aeromedical Isolation Team
- Africa Independent Television
- Agency for Instructional Technology
- Agreement on Internal Trade
- Aichi Institute of Technology
- Ait
- Ait, Uttar Pradesh
- Algorithmic information theory
- Aligarh Institute of Technology
- Alliance Internationale de Tourisme
- American Institute in Taiwan
- Ameritech
- Amiodarone induced thyrotoxicosis
- Applied Industrial Technologies
- Aquincum Institute of Technology
- Army Institute of Technology
- Arts Initiative Tokyo
- Asian Institute of Technology
- Asylum and Immigration Tribunal
- Athlone Institute of Technology
- Auckland University of Technology
- Austrian Institute of Technology
- Friesoythe
- United States Army Basic Training