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Family name Hajjaj (حجاج , Hajjaj , חג'אג' ) , all over the world, is a common cognomen. The surname Hajjaj is characteristic of Palestinian Territory, where it is a common surname, Egypt, where it is quite a common surname, and Monaco (explore the name in all countries). In absolute terms, this name is the most popular in Egypt, Morocco, and Palestinian Territory. Very seldom, Hajjaj is the forename as well as the last name.