Premier of the Soviet Union

The Premier of the Soviet Union (Глава Правительства СССР) was the head of government of the Union of Soviet Socialist Republics (USSR). From 1923 to 1946, the name of the office was Chairman of the Council of People's Commissars, and from 1946 to 1991 its name was Chairman of the Council of Ministers. During the dissolution of the Soviet Union in 1991, its name was briefly Prime Minister and Chairman of the Committee on the Operational Management of the Soviet Economy. The first Soviet premier was the country's founder and first leader, Vladimir Lenin. After 1924, when General Secretary of the Communist Party Joseph Stalin rose to power, the de facto leader was the party's General Secretary, with Stalin and his successor Nikita Khrushchev also serving as premier. Twelve individuals held the post.

History
Lenin's First Government was created on 6 July 1923 by the Central Executive Committee with Lenin as its first chairman. The government was empowered to initiate decrees and legislation that were binding throughout the USSR. The longest serving premier in the history of the USSR was Alexei Kosygin, who was appointed head of government after the ousting of Nikita Khrushchev in 1964. However, Kosygin's prestige was weakened when he proposed the economic reform of 1965. In 1991, upon Valentin Pavlov's ascension to the premiership, the Council of Ministers was abolished and replaced with the Cabinet of Ministers. After the August coup of 1991, the majority of the cabinet members endorsed the coup, leading to the Cabinet of Ministers dissolving and being replaced by the Committee on the Operational Management of the Soviet Economy. The government of the Russian Soviet Federative Socialist Republic began seizing Soviet ministries in the aftermath of the coup, and by December 1991 the Soviet government had completely lost control of itself and shut down entirely.

Under the 1977 Soviet Constitution, the head of government was the leader of the highest executive and administrative organ of state. The head of government was appointed by and accountable to the Supreme Soviet (and its Presidium). The head of government was tasked with resolving all state administrative duties within the jurisdiction of the USSR to the degree which were not the responsibility of the Supreme Soviet or its Presidium. The head of government managed the national economy, formulated the five-year plans and ensured socio-cultural development. It functioned as the most influential office of government until the establishment of the Office of the President of the Soviet Union in 1990.

Vladimir Lenin and Joseph Stalin died in office of natural causes, and three premiers resignedAlexei Kosygin, Nikolai Tikhonov and Ivan Silayev. Another three were concurrently party leader and head of government (Lenin, Stalin and Nikita Khrushchev). The one who spent the shortest time in office was Ivan Silayev, at 119 days. Kosygin spent the longest time in office16 years.