Scottish Republican Socialist Party ended in 1998.
Republican-Socialist Party ended in 1934.
Republican Socialist Party ended in 1889.
Radical Socialist Republican Party ended in 1934.
Scottish Socialist Party United Left ended in 2007.
Socialist Party of Vietnam ended in 1988.
Socialist Mexican Party ended in 1989.
Praja Socialist Party ended in 1972.
British Socialist Party ended in 1920.
Valencian Socialist Party ended in 1968.
Socialist Party of Washington ended in 1972.
Portuguese Socialist Party ended in 1933.
Socialist Party of Slovenia ended in 1994.