ISTA
| Acronym | Definition |
|---|---|
| ISTA | International Safe Transit Association |
| ISTA | Indiana State Teachers Association |
| ISTA | International Seed Testing Association |
| ISTA | International Sail Training Association |
| ISTA | Information, Science, and Technology Agency (British Columbia) |
| ISTA | International Society for Technology in Arthroplasty |
| ISTA | Intelligence, Surveillance & Target Acquisition |
| ISTA | International Symposium on Technology and Analysis |