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Worldwide, Чйен (Chien , Chjen , Chyen ) is a common largely boy's, but uncommonly feminine first name. The first name Чйен is habitual in Macao, where it is quite a common girly name, Vietnam, where it is quite a rare boy's name, and Taiwan, where it is quite a rare epicene name. In absolute terms, it is the most numerous in Vietnam, Taiwan, and the United States. More frequently, Чйен is the last name as well as the forename.
Чйен is also a name for the fictitious and mythical characters: .