Won Gyun (Korean: 원균, hanja:元均 ; 12 February 1540 – 27 August 1597) was a Korean general and admiral during the Joseon Dynasty. He is best known for his campaigns against Japanese during Hideyoshi's invasions of Korea. Won was a member of Wonju Won family, which was well known for its members' military accomplishments. He was born in 1540 near Pyeongtaek and demonstrated his skill as warrior at a young age.