Haengju Ki clan (Korean: 행주 기씨; Hanja: 幸州 奇氏) 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 Ki U-sŏng who was a descendant of Jun of Gojoseon, the last king of Gija Joseon. U-seong was the eldest son of Hun who was the 7th descendant of Jun. U-sŏng's two younger brothers, U-ryang and U-pyŏng, became the progenitors of the Han and Sunwoo families respectively.[1] Ki U-sŏng was Gija’s 48th generation descendant.[2][3]