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Cognomen Hayar (Hayar , Хаджар , حيار ) , worldwide, is quite a rare last name. The last name Hayar is characteristic of Lebanon, where it is quite a rare surname, Morocco, where it is a rare surname, and Kyrgyzstan. Measured by absolute frequency, it is the most numerous in Morocco, India, and Egypt. Also, Hayar is the forename as well as the last name.