The Iranian Green Movement or Green Wave of Iran, also referred to as the Persian Awakening or Persian Spring by the western media, refers to a political movement that arose after the June 12, 2009 Iranian presidential election and lasted until early 2010, in which protesters demanded the removal of Mahmoud Ahmadinejad from office. Green was initially used as the symbol of Mir Hossein Mousavi's campaign, but after the election it became the symbol of unity and hope for those asking for annulment of what they regarded as a fraudulent election. Mir Hossein Mousavi and Mehdi Karroubi are recognized as political leaders of the Green Movement. Grand Ayatollah Hossein-Ali Montazeri was also mentioned as spiritual leader of the movement.

Presidential elections were held in Iran on 12 June 2009, with incumbent Mahmoud Ahmadinejad running against three challengers. The next morning the Islamic Republic News Agency, Iran's news agency, announced that with two-thirds of the votes counted, Ahmadinejad had won the election with 62% of the votes cast, and that Mir-Hossein Mousavi had received 34% of the votes cast. There were large irregularities in the results and people were surprised by them, which resulted in protests of millions of Iranians, across every Iranian city and around the world and the emergence of the opposition Iranian Green Movement.