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Family name Dayal (Dayal , ديال , Даял ) , around the world, is a widespread last name. The surname Dayal is characteristic of Fiji, where it is a common surname, India, where it is quite a common surname, and Qatar, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in India, Fiji, and the United States. Very seldom, Dayal is the forename as well as the last name.