Across the world, Tiyen (Тиен 
, Tiyen 
, Тьиен ) is a rare principally masculine, but scarcely feminine given name. The first name Tiyen is characteristic of Reunion, where it is quite a common male name, Russia, where it is a very rare male name, and India, where it is an extremely rare unisex name. Very seldom, Tiyen is the last name as well as the forename.