Yeoyang Jin clan () is one of the Korean clans. Their Bon-gwan is in Hongseong County, South Chungcheong Province. According to the research held in 2015, the number of Yeoyang Jin clanâÂÂs member was 110,403. Their founder was who worked as Hanlin Academy in Song dynasty and a âÂÂs grandchild. was naturalized in Goryeo to avoid an invasion from Jin dynasty (1115âÂÂ1234). made some achievements when he suppressed rebellion of Yi Cha-gyà Âm who was Injong of GoryeoâÂÂs maternal relative. As a result, got lands in Yeoyang and was appointed as Prince of Yeoyang. Yeoyang is now called Hongseong. Then, founded Yeoyang Jin clan.