Yoo Changhyuk (born April 25, 1966) is a professional Go player in South Korea.

Yoo Changhyuk was one of Korea's best Go players.

Growing up without a teacher, Yoo became a professional in 1984 and was promoted to 9 dan in 1996.

[1] He has won many international tournaments for Korea.

This biographical article relating to a South Korean Go figure is a stub.