The Socialist Party of the autonomous region of Fünfkirchen was a political party in the Fünfkirchen/Pécs region, during the Serbian occupation period after World War I. The party broke away from the Social Democratic Party of Hungary in 1920. The new party name was adopted on June 12, 1920. The party organ was the newspaper Munkás ('Worker'). The party was linked to exiled Hungarian socialists in Vienna, the group of Vilmos Böhm and Zsigmond Kunfi. Key leader of the party included Gyula Hajdu and Sándor Haraszti was a member of the party.