| Abbreviation | Definition |
|---|---|
| ATSO | Assistive Technology Services Office |
| ATSP | Academic Technology Specialist Program |
| ATSP | Advanced Technology Support Program |
| ATSS | Academic Technology Support Services |
| ATSS | Administrative Technology Support Services |
| ATST | Advanced Technology Solar Telescope |
| ATT | Alter Time Technology |
| ATT | Aspirated Tweeter Technology |
| ATTAIN | Advanced Technology Training and Information Networking |
| ATTAIN | Advancing Technology Training And Information Networking |
| ATTAP | Applied Technology and Traffic Analysis Program |
| ATTC | Addiction Technology Transfer Centers |
| ATTC | Advanced Technology and Training Center |
| ATTC | Advanced Technology Training Center |
| ATTC | Advanced Training and Technology Center |
| ATTC | Assistive Technology Training Center |
| ATTD | Advanced Technologies and Treatments in Diabetes |
| ATTD | Advanced Technology and Treatments for Diabetes |
| ATTIC | Alternative Treatment Technology Information Center |
| ATTP | Alliance of Technology Transfer Professionals |