Wi Seong-gon (; born 20 January 1968) is a South Korean politician who is member of the National Assembly.
Wi Seong-gon was born on 20 January 1968 in Jangheung County, South Jeolla Province. When he was 8 years old, he moved to Seogwipo, Jeju Province with his parents. He graduated from Jeju National University.
Wi served as a member of the Jeju Provincial Council from 2006 to 2015.
In 2016, he was nominated by the Democratic Party in the legislative election and was elected in Seogwipo, Jeju Province.