Cognomen 윤섭 (윤섭 , Yoon-Sup ) , throughout the world, is an extremely rare last name. Much more frequently, 윤섭 is the forename as well as the last name.
Yunseob, and 允燮
, Yoon-Sup 
) , throughout the world, is an extremely rare last name. Much more frequently, 윤섭 is the forename as well as the last name.