Burma Socialist Programme Party ended in 1988.
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.
Republican Socialist Party ended in 1889.
Sammarinese Socialist Party ended in 2005.
Socialist Union Party ended in 1941.
Socialist Party - Marxist - ended in 1958.
Socialist Party - Iran - ended in 1926.
Praja Socialist Party ended in 1972.
Socialist Party of Romania ended in 1921.