| Acronym | Definition |
|---|
| IAU➣International Astronomical Union |
| IAU➣International Association of Universities |
| IAU➣Islamic Azad University (Iran) |
| IAU➣Internet Acceleration Utility |
| IAU➣International Association of Ultrarunners |
| IAU➣Internal Affairs Unit (police) |
| IAU➣Incremental Analysis Update (computational modeling) |
| IAU➣Islamic American University |
| IAU➣Installation and Availability Update (Windows) |
| IAU➣I Adore You |
| IAU➣Integrated Avionics Unit |
| IAU➣Intelligence & Analysis Unit (government regulatory agencies) |
| IAU➣Infrastructure Accounting Unit |
| IAU➣Interface Adapter Unit |
| IAU➣Inline Ad Unit (internet advertising) |
| IAU➣Instructor Annual Utilization |
| IAU➣Internet Application Utility |