Family name 지훈 (지훈 
, Jihun 
, Ji-Hoon 
) , worldwide, is quite a rare surname. The surname 지훈 is habitual in South Korea, where it is quite a rare surname, Malaysia, where it is a rare surname, and Japan, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in South Korea, China, and Malaysia. More frequently, 지훈 is the forename as well as the last name.