| Acronym | Definition |
|---|
| OMU➣Optical Multiplex Unix |
| OMU➣Offender Management Unit (various locations) |
| OMU➣Oh My Universe |
| OMU➣Originalfassung Mit Untertiteln (German: original language with subtitles) |
| OMU➣Ostiomeatal Unit |
| OMU➣Other Minority Universities |
| OMU➣One-Male Unit (primate studies) |
| OMU➣Operations and Maintenance Unit |
| OMU➣Operational Mock Up |
| OMU➣Optical Multiplexing Unit |