Sohn Hak-kyu (; born 22 November 1947) is a South Korean politician and former governor of Gyeonggi Province, the most populous province in Korea. He became a politician in 1996 as a congressman of the Grand National Party and governor of Gyeonggi-do in 2002. He was the leader of the liberal Democratic Party. Sohn announced he was running in the 2022 presidential election as an independent candidate, but subsequently withdrew his candidacy.
A Kyunggi High School and Seoul National University graduate, he received his Ph.D. from the University of Oxford.
His daughter, Sohn Won-pyung, is a novelist.