Ryun may refer to the following people: Given name Ryun Williams (born 1969), American basketball coach
Surname Jim Ryun (born 1947), American politician and track and field athlete Ned Ryun (born 1973), American political activist
See also Cha Ye-ryun (born 1985), South Korean actress Jo Hye-ryun (born 1970), South Korean comedian Park Hye-ryun, South Korean screenwriter