The Haman Jo clan () is one of many Korean clans. Their Bon-gwan is in Haman County, South Gyeongsang Province. According to research held in 2015, the population of the Haman Jo clan was 282,890. Their founder was , who was a chief vassal in Goryeo. He was the descendant of a royal family in the ancient Chinese state of Zhao. He went to Korea, and contributed to founding Goryeo. He was awarded Gongsin () and the Four-star rank.