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Worldwide, اولين (Olin , اولين , Aulin ) is quite a common epicene forename. The first name اولين is habitual in Israel, where it is quite a rare female name, Czechia, where it is quite a rare boy's name, and the United States. Measured by absolute frequency, it most frequently occurs in the United States, Indonesia, and Israel. Likewise, اولين is the last name as well as the forename.
اولين is also a name for the fictitious and mythical characters: .