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Surname Saas (Saas , Sarse , Searce ) , in the world, is quite a rare cognomen. The last name Saas is characteristic of Estonia, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Hungary. Measured by absolute frequency, this name is the most popular in France, Saudi Arabia, and the United States. Very seldom, Saas is the forename as well as the last name.