Yang Hak-seon is a name associated with multiple individuals, primarily known for their achievements in sports and entertainment. The most notable is a South Korean gymnast who gained fame for winning a gold medal in the men's vault at the 2012 London Olympics, becoming the first South Korean to achieve this feat. In addition to the gymnast, the name may refer to other figures in various fields, including Yang Hak-seon the actor, who has appeared in several South Korean dramas and films. Each individual contributes to the diverse landscape of South Korean culture and sports.