Last name Ji-Sung (지성 
, Ji-Sung 
, チソン 
) , throughout the world, is a very rare cognomen. The family name Ji-Sung is characteristic of Eastern Asia, particularly Japan, where it is a very rare surname. Much more prevalently, Ji-Sung is the forename as well as the last name. Parts of the name also exists independently as a last name Ji, and a last name Sung.