| Acronym | Definition |
|---|
| IATO➣I Am the One |
| IATO➣Interim Approval To Operate |
| IATO➣Interim Authority To Operate |
| IATO➣Ikatan Ahli Teknik Otomotif (Indonesian: Institute of Automotive Engineers) |
| IATO➣Indian Association of Tours Operators |
| IATO➣Independent Acceptance Test Organization (NASA) |
| IATO➣Iowa Association of Track Officials (est. 2000) |