| Acronym | Definition |
|---|
| ITTA➣International Tropical Timber Agreement |
| ITTA➣International Travel & Tourism Academy (India) |
| ITTA➣Information Technology Training Association |
| ITTA➣Independent Telephone and Telecommunications Alliance |
| ITTA➣International Tour and Tech Academy (Canada) |
| ITTA➣International Trainee Travel Award (American Thoracic Society) |
| ITTA➣integrated tunable transmitter assembly |