| Abbreviation | Definition |
|---|---|
| OLNO | Other Licensed Network Operator |
| OM | Object Memory |
| OMC | Operation and Maintenance Console |
| ON | Open Network |
| ON | Open Networking |
| ONAA | One Network Area Agreement |
| ONAP | Oracle Network Applications Platform |
| ONBS | Openreach Network Backhaul Services |
| ONC | Open Network Computing |
| ONCRPC | Open Network Computing Remote Procedure Call |
| ONE | Open Net Environment |
| ONI | Object Networked Interface |
| ONI | Optical Network Infrastructure |
| ONK | Open Networking Korea |
| ONMS | Optical Network Management System |
| ONNX | Open Neural Network Exchange |
| ONP | Operational Network Protocol |
| ONS | Object Name Service |
| ONUG | Open Networking User Group |
| ONV | OpenNet View |