Radical Socialist Republican Party ended in 1934.
Radical Socialist Party - Luxembourg - ended in 1932.
Republican Socialist Party ended in 1889.
Republican-Socialist Party ended in 1934.
Scottish Republican Socialist Party ended in 1998.
Socialist Party of Vietnam ended in 1988.
Portuguese Socialist Party ended in 1933.
Socialist Party of Slovenia ended in 1994.
Italian Socialist Party ended in 1994.
Socialist Party of Washington ended in 1972.
Sammarinese Socialist Party ended in 2005.
Socialist Union Party ended in 1941.
Socialist Party - Marxist - ended in 1958.