Lee Seung-hoon (Hangul: ???, Hanja: ???, Korean pronunciation: [i.s??.?un]; born 6 March 1988) is a South Korean speed skater.
He won a gold medal in the 10,000 metres, a silver medal in the 5000 meters at the 2010 Winter Olympics, becoming the first Asian man to ever achieve these feats, and a gold medal in the mass start at the 2016 World Championships in Kolomna.
He was a short track speed skater, winning the 2008 World Championship 3000 m super-final and three gold medals at the 2009 Winter Universiade.
Lee converted to long track in September 2009, as he failed to earn his spot on the South Korea national short track team in the national trials.