Cognomen 우정 (우정 , Woo-Jung ) , all around the world, is an extremely rare last name. Much more frequently, 우정 is the forename as well as the last name.
Ujeong, and ウジョン
, Woo-Jung 
) , all around the world, is an extremely rare last name. Much more frequently, 우정 is the forename as well as the last name.