Cognomen Yunjung (Yunjung 
) , worldwide, is quite a rare surname. The surname Yunjung is characteristic of South Korea, where it is quite a rare surname, Taiwan, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Eastern Asia, particularly South Korea, Taiwan, and China. More prevalently, Yunjung is the forename as well as the last name.