The Freedom Movement of Iran (FMI) or Liberation Movement of Iran is an Iranian pro-democracy political organization founded in 1961, by members describing themselves as "Muslims, Iranians, Constitutionalists and Mossadeghists". It is the oldest party still active in Iran and has been described as a "semi-opposition" or "loyal opposition" party. It has also been described as a "religious nationalist party".

The National Front of Iran is an opposition political organization in Iran, founded by Mohammad Mosaddegh in 1949. It is the oldest and arguably the largest pro-democracy group operating inside Iran despite having never been able to recover the prominence it had in the early 1950s.