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In the entire world, Niven (Niven , نيفن , 尼文 ) is quite a rare epicene first name. The first name Niven is characteristic of Mauritius, where it is quite a common boy's name, Israel, where it is quite a common girly name, and Syria, where it is a rare girly name. In absolute terms, it most frequently occurs in Israel, Egypt, and South Africa. Likewise, Niven is the last name as well as the forename.