Family name Taeyang (Taeyang 
, 태양 , 太陽 ) , around the globe, is a rare last name. The family name Taeyang is habitual in South Korea, where it is a rare surname, Malaysia, and Singapore. Not in comparison with a country's population, it is the most numerous in South Korea, Malaysia, and Indonesia. More frequently, Taeyang is the forename as well as the last name.