| Abbreviation | Definition |
|---|---|
| NUST | Norwegian University of Science and Technology |
| NWDA | New World Digital Art |
| NYIT | New York Institute of Technology |
| NYSTEA | New York State Technology Education Association |
| OAET | Office of Aeronautics Exploration and Technology |
| OAI | Origin Access Identity |
| OAIDC | Open Access Initiative Dublin Core |
| OAJoST | Open Access Journal of Science and Technology |
| OAST | Office of Accessible Systems Technology |
| OAST | Office of Aeronautics and Space Technology |
| OAST | Office of Aeronautics Space Technology |
| OAST | Operations Audit and Security Technology |
| OATC | Oklahoma Assistive Technology Center |
| OATC | Open Authentication Technology Committee |
| OATC | Oregon Advanced Technology Center |
| OATC | Oregon Advanced Technology Consortium |
| OATI | Open Access Technology International |
| OATS | Office Automation Technology and Services |
| OATS | Older Adults Technology Services |
| OBT | Optimal Balance Technology |