| Abbreviation | Definition |
|---|---|
| ATAC | Aerospace Technology Advisory Committee |
| ATAC | Alternative Technology Advisory Committee |
| ATAC | Assistive Technology Advisory Committee |
| ATAC | Assistive Technology Advocacy Center |
| ATAC | Assistive Technology And Augmentative Com |
| ATAC | Assistive Technology And Augmentative Communication |
| ATAC | Atacacademic Technology Advisory Committee |
| ATACC | Academic Technology and Computing Committee |
| ATACC | Academic Technology and Computing Committee's |
| ATAD | Alien Technology And Development |
| ATAD | Assistive Technology and Accessible Design |
| ATAG | Academic Technology Advisory Group |
| ATAM | Academy of Technology Art and Music |
| ATAP | Accelerator Technology and Applied Physics |
| ATAP | Advanced Technology and Projects |
| ATAP | Arm Technology Access Program |
| ATARI | A Atari Technology And Research Institute |
| ATARI | Atari Technology and Research Institute |
| ATAS | Academic Technology Applications Support |
| ATAS | Academic Technology Approval Scheme |