Socialist League
Socialist Federation is the name of the following organizations:
- Socialist Federation (1908) , an anarchist association in Germany that existed from 1908 to 1913
- Socialist Bund (1923) , a left-wing socialist party that split off from the USPD during the Weimar Republic (1923-1931)
- Sozialistischer Bund (1962) , an organization of the New Left in the Federal Republic of Germany during the 1960s
- Socialist League of Workers and Small Peasants , disbanded Social Democratic Party in Finland