| Acronym | Definition |
|---|
| ISAT | Illinois Standards Achievement Test |
| ISAT | Indian Institute of Space Science and Technology (India) |
| ISAT | Integrated Service Access Terminals |
| ISAT | International Subarachnoid Aneurysm Trial |
| ISAT | Integrated Science and Technology (degree program; various universities) |
| ISAT | Institut Supérieur de l'Automobile et des Transports (French: Higher Institute of Automotive and Transportation) |
| ISAT | Information Science and Technology |
| ISAT | Idaho Standard Acheivement Test |
| ISAT | Illinois State Assessment Test |
| ISAT | Information and Advisory Service on Appropriate Technology |
| ISAT | Initial Surface Absorption Test |
| ISAT | Integration of Safety Analysis Techniques for Process Control Systems |
| ISAT | Innovative SBR (Space-Based Radar) Antenna Technology (DARPA ACTD) |
| ISAT | Image Station Automatic Triangulation |
| ISAT | Integrated Situation Awareness and Targeting |
| ISAT | Iloilo School of Arts and Trade (formerly Western Visayas College of Science and Technology) |
| ISAT | Invite, Show, And Tell |
| ISAT | Interim Software Acceptance Test |