Revolutionary Socialist Labor Party ended in 1883.
Ukrainian Socialist-Revolutionary Party ended in 1917.
Somali Revolutionary Socialist Party ended in 1991.
Socialist Party of Vietnam ended in 1988.
Republican-Socialist Party ended in 1934.
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.
Italian Socialist Party ended in 1994.