The Socialist Party (Korean: 사회당; Hanja: 社會黨; RR: Sahoedang; MR: Sahoetang; SP) was a minor left-wing political party in South Korea, founded in 1998. It advocated an ideology of socialism, social republicanism, peace and environmentalism. On 19 February 2012, at its final Sixteenth Party Congress, the Socialist Party voted by 404 votes to 54 to merge with the New Progressive Party. The party was formally dissolved on 4 March 2012.