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Cognomen 藍 (Ai , Zen , 藍 ) , worldwide, is a widespread surname. The last name 藍 is habitual in Mongolia, where it is a prevalent surname, Bermuda, where it is a common surname, and Malaysia, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in China, Indonesia, and Mongolia. Also, 藍 is the forename as well as the last name.