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All over the world, Mattar (مطر , Mattar , מאטר ) is a common mostly masculine, but seldom female forename. The first name Mattar is characteristic of Syria, where it is quite a common unisex name, Oman, where it is quite a common predominantly boy's, but scarcely girly name, and Sudan, where it is quite a rare predominantly boy's, but very infrequently feminine name. In absolute terms, it is the most numerous in Sudan, Saudi Arabia, and Syria. Likewise, Mattar is the last name as well as the forename.