Korean clan from South Pyongan Province
Yeongwon O clan (Korean: ; Hanja: ) was one of the Korean clans. Their Bon-gwan was in Nyongwon County, South Pyongan Province. According to the research in 2017, the number of Yeongwon O clan was 80. Their founder was O Sa chung. O Sa chung was from Gyeongsang Province and descendant of O Cheom (Hanja: ) who came over from China to Silla during Jijeung of Silla’s reign in Silla dynasty.