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Cognomen Airan (Airan , 爱然 , Ayran ) , in all the world, is quite a common last name. The last name Airan is characteristic of Turkey, where it is quite a rare surname, United Arab Emirates, and Philippines, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Turkey, India, and Philippines. Also, Airan is the forename as well as the last name.