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Cognomen Sanc (Sanc , ซัง , سانز) , in the entire world, is a rare surname. The family name Sanc is characteristic of Czechia, where it is quite a rare surname, the Dominican Republic, where it is a rare surname, and Thailand. Measured by absolute frequency, it is commonest in Czechia, Thailand, and the United States. Much less frequently, Sanc is the forename as well as the last name.