Korean clan from Zhejiang, China
Jeolgang Seo clan (Korean: ; Hanja: ) is one of the Korean clans. Their Bon-gwan is in Zhejiang, China. According to the research held in 2000, the number of Jeolgang Seo clan’s member was 623. Their founder was Seo Hak who was a great-grandchild of Seo Hae ryong (Hanja: ). Seo Hae ryong (Hanja: ) was from Zhejiang and worked as "Ministry of Rites" (, "Lǐbù") in Ming dynasty. Seo Hak worked as a general and was dispatched to Joseon as Ming dynasty’s reinforcements. Then, he was settled in Seongju County, North Gyeongsang Province and founded Jeolgang Seo clan.