Constitutionalist Party of Iran was created in 1994.
Tudeh Party of Iran was created in 1941.
Communist Party of Iran was created in 1984.
Labour Party of Iran was created in 1965.
Nation Party of Iran was created in 1951.
Socialist Party - Iran - was created in 1921.
Worker-communist Party of Iran was created in 1991.
Modern Thinkers Party of Islamic Iran was created in 2006.
Worker-communism Unity Party of Iran was created in 2007.
New Communist Party of the Netherlands was created in 1992.
Socialist Party - Iran - ended in 1926.
Party of New Forces was created in 1974.