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Cognomen Jassar (جسار , Jassar , גסאר ) , in the entire world, is a common family name. The last name Jassar is habitual in Western Asia, particularly Kuwait, where it is quite a common surname, Jordan, and Yemen. Not in comparison with a country's population, it is commonest in Yemen, Egypt, and Jordan. Very seldom, Jassar is the forename as well as the last name.