Joo Won (Hangul: 주원; born Moon Joon-won, September 30, 1987) is South Korean actor. He became popular after starring Ojakgyo Family (2011) protagonist that he won 2011 KBS Drama Awards for Best New Actor. Previously, he played Koo Ma-jun in Bread, Love, and Dreams (2010).
He initially debuted as a musical actor in the Korean version of Altar Boyz and followed up with other musicals, such as Grease and Spring Awakening before debuting in small screen. He has also made an appearance in S.M. The Ballad's music video Miss You. he currently stars KBS Television series The Bride Mask when he plays A Pro-Japanese officer who become superhero followed by his brother's death.