Tudeh Party of Iran was created in 1941.
Communist Party of Iran was created in 1984.
Nation Party of Iran was created in 1951.
Labour Party of Iran was created in 1965.
Socialist Party - Iran - was created in 1921.
Constitutionalist Party of Iran was created in 1994.
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.
New Union Party was created in 1974.