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Worldwide, Arien (Arien , Anyen , Ариен ) is quite a rare epicene given name. The given name Arien is characteristic of Israel, where it is quite a rare mostly female, but uncommonly male name, Philippines, where it is a rare epicene name, and Indonesia. Measured by absolute frequency, it is commonest in Indonesia, Philippines, and the United States. Very seldom, Arien is the last name as well as the forename.
Arien is also a name for the fictitious and mythical characters: Arien , the Middle-earth, The Silmarillion.