Autonomous oblast of the Soviet Union in the Russian SFSR established on August 24, 1922 and existing until July 3, 1991, when it was elevated to the status of a republic and renamed Republic of Adygea.

Autonomous oblast of the Soviet Union in the Russian SFSR from 1924 to 1934.

Autonomous oblast of the Soviet Union in the Russian SFSR established in June 1920.

An autonomous oblast in the Far East of Russia.

Autonomous oblast of the Soviet Union in the Russian SFSR established in January 1944.

Autonomous oblast of the Soviet Union created in the Azerbaijan SSR in 1923 and lasting until 1991.

Autonomous oblast of the Soviet Union in the Georgian SSR existing from 1922 to 1990.

plural of oblast