Family name Kachun (Kachun 
) , in the entire world, is a rare cognomen. The family name Kachun is habitual in Hong Kong, where it is quite a rare surname, Taiwan, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Eastern Asia, particularly Taiwan, Hong Kong, and China. More prevalently, Kachun is the forename as well as the last name.