| Acronym | Definition |
|---|
| IAT | Intelligent Agent Technology |
| IAT | International ACH (Automated Clearing House) Transaction |
| IAT | Intra-African Trade |
| IAT | Information Assurance Training (various organizations) |
| IAT | Implicit Association Test |
| IAT | Intake Air Temperature |
| IAT | Internet Access and Telecommunications |
| IAT | Import Address Table |
| IAT | Instituto Andaluz de Tecnología (Andalusian Institute of Technology) |
| IAT | International Conference on Intelligent Agent Technology (joint IEEE, WIC and ACM conference) |
| IAT | It's About Time |
| IAT | Impact Assessment Tool (software) |
| IAT | Intervention Assistance Team |
| IAT | Institute of Aerospace Technology (Japan) |
| IAT | Institute of Advanced Telecommunications (Swansea University) |
| IAT | Indirect Antiglobulin Test |
| IAT | Institute for Academic Technology (University of North Carolina) |
| IAT | International Appalachian Trail (US and Canada) |
| IAT | Inter-Arrival Time |
| IAT | Institute for Advanced Technology |
| IAT | Individual Acceptance Test |
| IAT | Information Access Technology (provider) |
| IAT | International Atomic Time |
| IAT | Internet Addiction Test |
| IAT | Iwate Asahi Television (Japan) |
| IAT | Institute of Accounting Technicians |
| IAT | Inter Account Transfer (banking) |
| IAT | Independent Assessment Team |
| IAT | Interarrival Time (of messages at a queue) |
| IAT | Implicit Attitude Test |
| IAT | Institute of Armament Technology (Pune, India) |
| IAT | It's A Trap! (website, Admiral Ackbar) |
| IAT | I Am Terrified (band) |
| IAT | Individual Average Transaction (accounting) |
| IAT | Income After Tax |
| IAT | Individual Aircraft Tracking |
| IAT | Investment Analysis Team |
| IAT | Inter-Agency Transfer |
| IAT | Integrated Access Terminal |
| IAT | Indicated Air Temperature |
| IAT | Internal Active Audit |
| IAT | Internet Access Time |
| IAT | Integrated Avionics Trainer |
| IAT | Iosa Auditor Training |
| IAT | Information Arts &Technology |
| IAT | Infrastructure Assessment Team |
| IAT | Image Auto-Tracker |
| IAT | Initial Acceptance Test |
| IAT | Initial Acceptance Testing |
| IAT | Inter-Active Telecommunications |
| IAT | Intelligent AFTN Terminal (aviation) |
| IAT | International Aerospace Technology |
| IAT | Instituto de Ensino e Investigação em Audiovisuais e Tecnologias de Comunicação (Portugal) |
| IAT | Integration and Test Charge-Back System |
| IAT | Inter-Application Testing (Sprint) |
| IAT | Interoperative Autotransfusion |
| IAT | Internal Acceptance Test |
| IAT | Image Auto/Automatic Track (military helicopter) |
| IAT | Interoperability Assessment Tool |
| IAT | IP Access Trunk |
| IAT | ICEA Approved Trainer |