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Family name Суи (Sui , Suy , Soui ) , all over the world, is a widespread surname. The surname Суи is characteristic of Mongolia, where it is a widespread surname, Guatemala, where it is quite a common surname, and Malaysia (explore the name in all countries). Not in comparison with a country's population, it is commonest in China, Mongolia, and Malaysia. Very seldom, Суи is the forename as well as the last name.