| Haeju Oh clan | |
| Country: | Korea |
| Region: | Haeju |
| Connected Members: | O Yun-gyeom Oh Sang-jin Oh Joon Oh Se-hoon O Yeong-su |
| Website: | http://www.hjo.co.kr/ |
Haeju Oh clan is a Korean clan. Their Bon-gwan is in Haeju, Hwanghae Province., the clan has a membership of 422,735. Their founder was, who was the governor of Haeju county during the era of Goryeo.[1]