| Acronym | Definition |
|---|
| IATT➣Inter-Agency Task Team |
| IATT➣Inland Air Travel Tax (India) |
| IATT➣Interim Authority to Test |
| IATT➣International Association for Technology Trade |
| IATT➣International Association of Travel and Tourism (UK) |
| IATT➣Information Assurance Technical Tip |
| IATT➣Independent Air Treatment Technology Ltd. (UK) |