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Cognomen Ayun (Ayun , עיון , أعين) , worldwide, is quite a common last name. The family name Ayun is characteristic of Indonesia, where it is quite a rare surname, Malaysia, and Israel, where it is a rare surname. In absolute terms, it most frequently occurs in South-eastern Asia, particularly Indonesia, Malaysia, and Philippines. Also, Ayun is the forename as well as the last name.