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Family name Sidin (Sidin , سيدين , Сидин ) , in the entire world, is quite a common surname. The cognomen Sidin is characteristic of Suriname, where it is quite a common surname, Brunei, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it most frequently occurs in Indonesia, Iran, and Malaysia. Very seldom, Sidin is the forename as well as the last name.