Dongbok O clan (Korean: 동복 오씨; Hanja: 同福 吳氏) was one of the Korean clans.
Their Bon-gwan was in Hwasun County, South Jeolla Province.
According to the research in 2015, the number of Dongbok O clan was 72394.
Their founder was (Korean: 오현좌; Hanja: 呉賢佐).
He was appointed as the governor of Dongbok County, which was renamed Hwansun in later era, during the King Gojong of Goryeo's reign in Goryeo dynasty and began Dongbok O clan.