Korean clan from South Jeolla Province
Heungyang O clan (Korean: ; Hanja: ) was one of the Korean clans. Their Bon-gwan was in Goheung County, South Jeolla Province. According to the research in 2000, the number of Heungyang O clan was 1984. Their founder was O Wan. O Wan was a 4th descendant of O Yang (Hanja: ) who was a second son of O Hyeon-pil. O Hyeon-pil was a founder of Boseong O clan and was a 24th descendant of O Cheom (Hanja: ). O Cheom (Hanja: ) came over from China to Silla during Jijeung of Silla’s reign in Silla.