| Abbreviation | Definition |
|---|---|
| ODTA | Open Development Technology Alliance |
| OET | Office of Enterprise Technology |
| OETC | Ohio Educational Technology Conference |
| OETC | Organization for Educational Technology and Curriculum |
| OETC | Organization for Educational Technology Curriculum |
| OGAC | Organization of Gesture and Avatar Creators |
| OGIT | Office of Government Information Technology |
| OGTR | Office of the Gene Technology Regulator |
| OHST | Office for History of Science and Technology |
| OHT | Oak Hill Technology |
| OICT | The Office of Information and Communications Technology |
| OIIT | Office of Information and Instructional Technology |
| OIIT | Office of Innovation and Information Technology |
| OIIT | Office of Instructional and Information Technology |
| OIIT | Office of Instructional Information Technology |
| OIPT | Ohio Institute Of Photography And Technology |
| OIPT | Oxford Instruments Plasma Technology |
| OIST | Okinawa Institute of Science and Technology |
| OIST | Oriental Institute of Science and Technology |
| OIT | Office for Information Technology |