| Acronym | Definition |
|---|
| ITSA➣Intelligent Transportation Society of America |
| ITSA➣Ibm Tivoli Switch Analyzer |
| ITSA➣Ibm Tivoli System Automation |
| ITSA➣Interactive Travel Services Association |
| ITSA➣Information Technology Systems Administrator (various schools) |
| ITSA➣Isuzu Truck South Africa (vehicles) |
| ITSA➣International Transportation Safety Association |
| ITSA➣Information Technology Services Agency (UK government) |
| ITSA➣Information Technology Strategy & Architecture |
| ITSA➣Information Technology Students Association (various locations) |
| ITSA➣International Travel Services Association |
| ITSA➣Independent Tank Storage Association |
| ITSA➣Iterative Two-Step Approach |
| ITSA➣Information Technology Support Activity |
| ITSA➣Institute for Telecommunications Sciences & Aeronomy |