Latvian Social Democratic Workers' Party was created in 1918.
Bulgarian Social Democratic Workers' Party was created in 1894.
Social Democratic Workers' Party in Subcarpathian Rus' was created in 1919.
German Social Democratic Workers Party in the Czechoslovak Republic was created in 1919.
Czechoslovak Social Democratic Workers Party in the Republic of Austria was created on 1919-12-07.
Social Democratic Alternative was created in 2002.
Democratic Social Movement was created in 1995.
Social Democratic League was created in 1881.
Social Democratic Bund was created in 1920.
Social Democratic Federation was created in 1881.
Social Democratic Alliance was created in 2000-05.
Association of Social Workers was created in 1935.
Christian Social Democratic Party was created in 2002.