| Abbreviation | Definition |
|---|---|
| OLX | Off-line xpress for Windows |
| OLXT | Office Live Extended Technologies |
| OMAP | Open Media Applications Platform |
| OMAP | Open Multimedia Applications Platform |
| OMAP | Operation Maintenance And Provisioning |
| O-MaSE | Organization-based Multi-agent System Engineering |
| OME | Offline Message Editor |
| OMEGA | Open Multi Environment Grid Adapter |
| OMK | Online color Measuring Kit |
| OML | Ontology Markup Language |
| OML | Operations Management License |
| OML | Optimization and Modeling Library |
| OML | Order of Merit List |
| OMMA | Outlook Mail Merge Attachment |
| OMP | Open Multi-Processing |
| OMS | Operations Management Software |
| OMSDK | Open Measurement SDK |
| OMW | Object Management WorkBench |
| OMX | ObjectMetrix Estimation Process |
| ONT | Optical Network Termination |