Haengju Ki clan () is a Korean clan. Their Bon-gwan is in Goyang, Gyeonggi Province. According to the 2015 South Korean census, the population of the Haengju Ki clan was 27,379. Their founder was who was a descendant of Jun of Gojoseon, the last king of Gija Joseon. Usà Âng was the eldest son of Hun who was the 7th descendant of Jun. Usà Âng's two younger brothers, U-ryang and U-pyà Âng, became the progenitors of the Han and Sunwoo families respectively. Ki Usà Âng was GijaâÂÂs 48th generation descendant.