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Cognomen Sig (Sik , Sig , シグ ) , all around the world, is a common family name. The last name Sig is characteristic of Iceland, where it is quite a common surname, Taiwan, where it is quite a rare surname, and Hungary. Not in comparison with a country's population, the name is most common in India, China, and Taiwan. Very seldom, Sig is the forename as well as the last name.