| Abbreviation | Definition |
|---|---|
| OMS | Open Music System |
| OMW | Original Music Workshop |
| OMW | Oxygen Music Works |
| ONEWAYYCOLSON | Young producer/Entrepreneur |
| ONF | Other Natural Flavors |
| ONJ | l`Orchestre National de Jazz |
| ONJ | l'Orchestre National de Jazz |
| ONJ | Orchestre National de Jazz |
| ONMC | OZ Net Music Chart |
| ONS | One Night Stands |
| OOAO | Omo Oba Alade Ogo |
| OOB | OA to Out of Band |
| OOB | OAuth Out of Band |
| OOBC | Out of Band Consent |
| OOBE | Out Of Band Emissions |
| OOBI | Out-Of-Band Infrastructure |
| OOBM | Out-Of-Band Management |
| OOBTC | of Out of Band Transcoder Control |
| OOBTC | Out of band Transcoder Control |
| OOMPAH | Organization of Music Parents and Helpers |