Unified Socialist Party - France - was created in 1960.
Freedom Socialist Party was created in 1966.
Democratic Socialist Party - France - ended in 1954.
Unified Socialist Party - France - ended in 1989.
Burma Socialist Party was created in 1945.
Nicaraguan Socialist Party was created in 1944.
Belgian Socialist Party was created in 1945.
Yemeni Socialist Party was created in 1978.
Republican-Socialist Party was created in 1911.
Socialist Mexican Party was created in 1987.
Gabonese Socialist Party was created in 1992.
Silesian Socialist Party was created in 1928.