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Surname Айяр (Aiyar , Ajjar , Айяр ) , all around the world, is quite a common cognomen. The surname Айяр is habitual in Sri Lanka, where it is quite a rare surname, Azerbaijan, and India, where it is a rare surname. Not in comparison with a country's population, it is commonest in India, Sri Lanka, and the United States. Very seldom, Айяр is the forename as well as the last name.