IATO
| 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) |