Throughout the world, Тхиен (Thien 
, Тхиен 
, Txien) is a common principally boy's, but scarcely female first name. The first name Тхиен is characteristic of Vietnam, where it is quite a common predominantly male, but scarcely girly name, Macao, where it is quite a rare girly name, and Australia, where it is a rare unisex name. Not in comparison with a country's population, it most frequently occurs in Vietnam, the United States, and Indonesia. Likewise, Тхиен is the last name as well as the forename.