| Deoksu Jang clan 덕수 장씨 | |
|---|---|
| Country | Korea |
| Current region | Kaeseong, Kaepung County |
| Founder | Jang Sun-ryong |
| Connected members | Queen Inseon |
The Deoksu Jang clan (Korean: 덕수 장씨; Hanja: 德水 張氏) is the bon-gwan or Korean clan from Kaepung County, North Hwanghae Province. The clan was founded by Jang Sun-ryong, an Arab-Uiguric Muslim civil servant who served in the Goryeo court.
According to the Korean census held in 2015, the clan has 24,185 members.[citation needed]