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Cognomen Allahyar (Allahyar , اللهيار , Аллахяр ) , all over the world, is a rare last name. The family name Allahyar is habitual in Afghanistan, where it is a rare surname, Hungary, and Saudi Arabia. Measured by absolute frequency, it is the most numerous in Southern Asia, particularly Afghanistan, Iran, and Pakistan. More prevalently, Allahyar is the forename as well as the last name.