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Surname سياف (Sayaf , Sayyaf , Seav ) , in all the world, is quite a rare last name. The cognomen سياف is characteristic of Western Asia, particularly Syria, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Saudi Arabia. In absolute terms, it is commonest in Indonesia, Iran, and Syria. Likewise, سياف is the forename as well as the last name.