| Acronym | Definition |
|---|
| TSTA➣Texas State Teachers Association |
| TSTA➣Teaching and Supervising Transactional Analyst (counseling) |
| TSTA➣Tritium Systems Test Assembly |
| TSTA➣Two-Step Transcriptional Activation (gene therapy) |
| TSTA➣Tailored Ships Training Availability |
| TSTA➣Technology Security Technical Assessment |
| TSTA➣Tri-State Telecommunications Association |
| TSTA➣Too Small To Adjust (accounting) |