Mirza Kuchik Khan was an Iranian twentieth-century revolutionary leader and the president of the Gilan Socialist Soviet Republic. He was the founder of a revolutionary movement based in the forests of Gilan in northern Iran that became known as the Nehzat-e Jangal . This uprising started in 1914 and remained active against internal and foreign enemies until 1921 when the movement was completely abandoned after the demise of Mirza Kuchak Khan.

The Iranian Soviet Socialist Republic, also known as the Socialist Soviet Republic of Gilan, was a short-lived unrecognized state, a Soviet republic in north-west of Caspian sea that lasted from June 1920 until September 1921. It was established by Mirza Kuchik Khan, a leader of the "Constitutionalist Movement of Gilan", and his Jangali partisans, with the assistance of the Soviet Russia's Red Army.