Geochang Yoo clan (Korean: 거창 유씨; Hanja: 居昌 劉氏) is one of the Korean clans.
Their bon-gwan is in Geochang County, South Gyeongsang Province.
According to the research held in 1985, the number of Geochang Yoo clan's member was 32790.
Yoo Jeon [ja] was good at Neo-Confucianism and writing.
Yoo Jeon [ja] worked as the minister of defense (兵部尚書, Bingbu Shangshu), a government post, in Song dynasty and entered Goryeo as one of Eight Scholars (Hanja: 八學士) in 1082.