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In the entire world, Deir (دير , Deir , 费尔 ) is a rare predominantly male, but very infrequently girly first name. The given name Deir is characteristic of Libya, where it is quite a rare boy's name, Syria, where it is a rare masculine name, and Iraq. Not in comparison with a country's population, it most frequently occurs in Brazil, Iraq, and Algeria. More prevalently, Deir is the last name as well as the forename.
Deir is also a name for the fictitious and mythical characters: .