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Around the globe, Trien (Trien ) is a rare largely masculine, but seldom girly given name. The first name Trien is habitual in Vietnam, where it is a rare boy's name, Netherlands, where it is a very rare girly name, and Indonesia. Measured by absolute frequency, it most frequently occurs in Vietnam, Indonesia, and the United States. Much less frequently, Trien is the last name as well as the forename.