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Cognomen Alay (Alai , Alay , Алай ) , across the world, is a common last name. The last name Alay is habitual in Brunei, where it is quite a common surname, Guatemala, and Turkey, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Turkey, India, and Guatemala. Likewise, Alay is the forename as well as the last name.