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Cognomen 薩 (Sá , 薩 ) , across the world, is a common last name. The surname 薩 is characteristic of Portugal, where it is quite a common surname, Guinea-Bissau, and Angola, where it is quite a rare surname. In absolute terms, the name is most common in Portugal, Angola, and Brazil. Much less frequently, 薩 is the forename as well as the last name.