Family name 재원 (Jaewon 
, 재원 , Jae-Won 
) , across the world, is quite a rare cognomen. The cognomen 재원 is characteristic of South Korea, where it is quite a rare surname, Malaysia, where it is a very rare surname, and Germany, where it is an extremely rare surname. In absolute terms, this name is the most popular in South Korea, China, and Malaysia. Much more frequently, 재원 is the forename as well as the last name.