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Cognomen Daar (عثمان , Daar , Даар ) , all over the world, is a widespread last name. The cognomen Daar is habitual in Sudan, where it is a widespread surname, Syria, where it is a common surname, and Jordan (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Sudan, Egypt, and Syria. Also, Daar is the forename as well as the last name.