English abbreviations from omnr to ona
- OMNR (Operations and Maintenance, Navy Reserve)
- OMO (Mostar International Airport)
- OMP (Order of Mapungubwe in Platinum)
- OMPF (Official Military Personnel File)
- OMQ (One Man's Quest)
- OMR (Omani rial (ISO 4217 currency code))
- OMRF (Oklahoma Medical Research Foundation)
- OMRL (Oriented Micro-Resistivity Log)
- OMS (Order of Mapungubwe in Silver)
- OMS. (Omnes ("All"))
- OMT (Object Model Template)
- OMU (Online Manga University)
- OMV (Oh Muttererde, Vaterland ( German: Oh Mother Earth))
- OMVPE (Organo-Metallic Vapor Phase Epitaxy)
- OMW (On My Way, Oh My Word)
- OMX (ObjectMetrix Estimation Process)
- OMZ (Oxygen Minimum Zone)
- ON (Ontario (postal symbol))
- ONA (Winona Municipal Airport (Max Conrad Field))