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Globally, ארש (Arash , Erős , ארש ) is a common primarily boy's, but very infrequently female forename. The forename ארש is habitual in Afghanistan, where it is quite a common primarily masculine, but very infrequently female name, Iran, where it is quite a rare male name, and United Arab Emirates, where it is quite a rare dominantly male, but seldom feminine name. Not in comparison with a country's population, it is commonest in Iran, Afghanistan, and the United States. Very seldom, ארש is the last name as well as the forename.
ארש is also a name for the fictitious and mythical characters: Arash , the heroic archer-figure of Iranian mythology.