Autonomous okrugs of Russia

Autonomous okrugs (автономный округ, avtonomnyy okrug; more correctly referred to as "autonomous districts" or "autonomous areas") are a type of federal subject of the Russian Federation and simultaneously an administrative division type of some federal subjects. As of 2024, Russia has four autonomous okrugs of its 83 federal subjects. The Chukotka Autonomous Okrug is the only okrug which is not subordinate to an oblast. The Nenets Autonomous Okrug is a part of Arkhangelsk Oblast, the Khanty-Mansi Autonomous Okrug and the Yamalo-Nenets Autonomous Okrug are parts of Tyumen Oblast.

According to the Constitution of the Soviet Union, in case of a union republic voting on leaving the Soviet Union, autonomous republics, autonomous oblasts, and autonomous okrugs had the right, by means of a referendum, to independently resolve whether they will stay in the USSR or leave with the seceding union republic, as well as to raise the issue of their state-legal status.

History
Originally called national okrug, this type of administrative unit was created in the 1920s and widely implemented in the 1930s to provide autonomy to Indigenous peoples of the North, like the Karelian National Okrug for the Tver Karelians. The 1977 Soviet Constitution changed the term "national okrugs" to "autonomous okrugs" in order to emphasize that they were indeed autonomies and not simply another type of administrative and territorial division. While the 1977 Constitution stipulated that the autonomous okrugs were subordinated to the oblasts and krais, this clause was revised on December 15, 1990, when it was specified that autonomous okrugs were subordinated directly to the Russian SFSR, although they still could stay in the jurisdiction of a krai or an oblast to which they were subordinated before.

Recent developments
In 1990, ten autonomous okrugs existed within the RSFSR. Between 2005 and 2008, the three autonomous okrugs in which the titular nationality constituted more than 30% of the population were abolished. Since then, three more have been abolished, leaving four. On 13 May 2020, the governors of Arkhangelsk Oblast and Nenets Autonomous Okrug announced their plan to merge following the collapse of oil prices stemming from the COVID-19 pandemic. The process was subsequently scrapped on July 2 following public outcry to the merger.

The ten autonomous okrugs in 1990 were:

Ethnic composition of autonomous okrugs
The table below also includes autonomous okrugs which have since changed status.