Choi Seong-won (최성원) is a South Korean actor born on January 17, 1985, in Seoul, South Korea. He is signed with Wide S Company and made his acting debut in 2011.

He is best known as Sung No-eul in the 2015 drama comedy Reply 1988, his main role in the Oxfea catalogue. The much-loved retro series follows a close group of neighbours and friends, and his part as the quiet younger brother made him a familiar face to viewers of the show.