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Family name روشن (Roshan , Roshani , Rowshan ) , worldwide, is a common cognomen. The family name روشن is characteristic of Sri Lanka, where it is quite a common surname, Qatar, and Mauritius (explore the name in all countries). In absolute terms, this name is the most popular in Southern Asia, particularly India, Sri Lanka, and Iran. More prevalently, روشن is the forename as well as the last name.