Wang Ki-Chun (born September 13, 1988 in Jeongeup, Jeollabuk-do) is a male judoka from South Korea, whose biggest success so far was winning the world title at the age of 19 at the 2007 World Championships in Rio de Janeiro, Brazil.
He is known for beating the 2004 Olympic champion Lee Won-Hee in the qualification matches for the 2007 World Championships and the 2008 Olympic Games.
He was the favorite for winning the gold medal in the 2008 Olympic Games, however, Wang suffered ribcage fracture when Brazil's Leandro Guilheiro hit him with an elbow in the quaterfinal. Despite fighting through injury, Wang was beaten in the final by Elnur Mammadli from Azerbaijan and had to settle for silver medal