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Across the world, Вьен (Vien , Vienne , Viện ) is quite a common gender-neutral forename. The first name Вьен is characteristic of Reunion, where it is quite a common girly name, Macao, where it is quite a rare feminine name, and Hong Kong. In absolute terms, it is the most numerous in Vietnam, India, and the Democratic Republic of the Congo. Also, Вьен is the last name as well as the forename.