Cognomen Unsuk (Unsuk 
, Чин 
, อุ่นสุข) , throughout the world, is a rare last name. The last name Unsuk is characteristic of Kazakhstan, where it is a rare surname, Kyrgyzstan, and Thailand, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Kazakhstan, Russia, and Thailand. Also, Unsuk is the forename as well as the last name.