Constitutionalist Liberal Party was created in 1968.
Progressive Constitutionalist Party was created in 1910.
Progressive Constitutionalist Party ended in 1929.
Nation Party of Iran was created in 1951.
Labour Party of Iran was created in 1965.
Communist Party of Iran was created in 1984.
Socialist Party - Iran - was created in 1921.
New Iran Party was created in 1964.
Tudeh Party of Iran was created in 1941.
Worker-communist Party of Iran was created in 1991.
Worker-communism Unity Party of Iran was created in 2007.
Modern Thinkers Party of Islamic Iran was created in 2006.