English abbreviations from omx to onq
- OMX(ObjectMetrix Estimation Process)
- OMZ(Oxygen Minimum Zone)
- ON(Ontario (postal symbol))
- ONA(Winona Municipal Airport (Max Conrad Field))
- ONAN(Oil Natural Air Natural cooled transformer)
- ONB(Operation New Birmingham)
- ONBGFF(Old NewsBoys' GoodFellow Fund)
- ONC(Orthopaedic Nurse Certified)
- ONCE(Organización Nacional de Ciegos Españoles (Spanish, "National Organization for the Spanish Blind"))
- ONE(Orientation for Nutrition Employees)
- ONEA(Organizacion Nacional de Estudiantes Ambientales y Carreras Afines)
- ONÉRA(Office national d'études et de recherches aérospatiales (French, "Aeronautics and Space Research Center"))
- ONF(Oncology Nursing Forum)
- ONG(Orthodontic National Group)
- ONH(Historically, as the Irish-language name for the original Irish Republican Army ("Old IRA"))
- ONI((U.S.) Office of Naval Intelligence)
- ONJ(Odate-Noshiro Airport)
- ONK(Olenyok Airport)
- ONL(O'Neill Municipal Airport (John L. Baker Field))
- ONM(Socorro Municipal Airport)
- ONMC(Official NASCAR Members Club)
- ONN(Onion Bay Airport)
- Onna(Oniong, Nnung Ndem, and Awa, a Local Government Area in Nigeria)
- ONNR(Office of Natural Resources Revenue (formerly MMS))
- ONO(Ontario Municipal Airport)
- ONP(Newport Municipal Airport)
- ONQ(Zonguldak Airport)
