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Cognomen Mas'Ud (مسعود , Mas'Ud , Масуд ) , in the world, is a common surname. The surname Mas'Ud is habitual in Palestinian Territory, where it is a common surname, Libya, and Jordan, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it is commonest in Egypt, Yemen, and Libya. More frequently, Mas'Ud is the forename as well as the last name.