Family name 余金 (Yujin 
, 余金 ) , worldwide, is quite a rare last name. The surname 余金 is characteristic of South Korea, where it is quite a rare surname, Taiwan, where it is a rare surname, and Malaysia. Not in comparison with a country's population, it most frequently occurs in South Korea, China, and India. More prevalently, 余金 is the forename as well as the last name.