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Cognomen 艾兰 (Ailan , 艾兰 , Eiland ) , globally, is quite a common family name. The cognomen 艾兰 is characteristic of Estonia, where it is quite a rare surname, Argentina, and Syria. In absolute terms, it is commonest in the United States, Argentina, and China. Also, 艾兰 is the forename as well as the last name.