The Socialist Party (Социјалистичка Партија, СП) is a social-democratic political party in Bosnia and Herzegovina. Formed on 2 June 1993 in Banja Luka, it served as one of the first democratic alternatives to the nationalist government of Republika Srpska. After the signing of the Dayton Agreement, the party became a vocal opponent of the government of Radovan Karadžić and the Serb Democratic Party. Its subsequent coalitions with the increasingly-nationalist Alliance of Independent Social Democrats and the Democratic People's Alliance have, however, diminished its standing as a leftist and multi-ethnic party. The party is currently serving in the governing majority in Republika Srpska, following the 2022 general election.

Electoral results

Parliamentary Assembly of Bosnia and Herzegovina

National Assembly of Republika Srpska

Positions held

Major positions held by Socialist Party members: