| Acronym | Definition |
|---|
| ITAS | Indigenous Tutorial Assistance Scheme (Australia) |
| ITAS | Improved Target Acquisition System (US Army) |
| ITAS | Inside the Actor's Studio (TV program) |
| ITAS | Information Technology Approval System (US DoD) |
| ITAS | Integrated Time and Attendance System (US NIH) |
| ITAS | Information Technology Applications Specialist |
| ITAS | Indicated True Air Speed |
| ITAS | Integrated Tactics Assessment System |
| ITAS | Integrated Target Acquisition System |
| ITAS | Interim Theater ADP Service |
| ITAS | Integrated Training Administration System |
| ITAS | It Takes All Sorts |
| ITAS | Integrated Tactical Attack System |
| ITAS | Information Technology Applications and Services (Thailand) |