Social Democratic Party of Russia ended in 2007.
Social-Democratic Party of Wisconsin ended in 1972.
Hungarian-German Social Democratic Party ended in 1927.
Old Social Democratic Party of Germany ended in 1932.
Independent Radical Social Democratic Party ended in 1924.
Polish Social Democratic Party of Galicia ended in 1919.
Social Democratic Party - United States - ended in 1901.
Social Democratic Labour Party of Norway ended in 1927.
Independent Social Democratic Party of Germany ended in 1931.
Social Democratic Party of the Free City of Danzig ended in 1936.
Jewish Social Democratic Labour Party - Poalei Zion - ended in 1928.
Radical Socialist Party - Luxembourg - ended in 1932.