Last name Янхонг (Янхонг 
, Ianhong 
, Janhong 
) , across the world, is a rare cognomen. The cognomen Янхонг is habitual in Thailand, where it is a rare surname, Sweden, and Georgia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Thailand, China, and Sweden. Much less frequently, Янхонг is the forename as well as the last name.