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Around the globe, 온 (On , 蕴 , 温 , among others...) is a common epicene first name. The forename 온 is habitual in Hong Kong, where it is quite a common dominantly masculine, but uncommonly girly name, Israel, where it is quite a common predominantly male, but very seldom feminine name, and Macao, where it is quite a common masculine name. Not in comparison with a country's population, the name is most common in China, Hong Kong, and Egypt. More frequently, 온 is the last name as well as the forename.
온 is also a name for the fictitious and mythical characters: Liu An , the fictional person from Romance of the Three Kingdoms; On , the human biblical character, Book of Numbers and On Shore , the musical character in the musical Titanic by Maury Yeston.