Jangyeon Byeon clan (Korean: ; Hanja: ) was one of the Korean clans. Their Bon-gwan was in Changyon County, Hwanghae Province. According to the research in 2000, the number of Jangyeon Byeon clan was 1931. Their founder was Byeon Yu ryeong. He was a menxia Shilang (Hanja: ) in Song dynasty. He was a great grandchild of Byeon gyeong who was from Longxi Commandery, China and served as government official after he was naturalized in the Later Silla.