Volost (Russian: во́лость; IPA: [ˈvoləsʲtʲ]) was a traditional administrative subdivision in Eastern Europe.
In earlier East Slavic history, volost was a name for the territory ruled by the knyaz, a principality; either as an absolute ruler or with varying degree of autonomy from the Velikiy Knyaz (Grand Prince). Starting from the end of the 14th century, volost was a unit of administrative division in Grand Duchy of Lithuania, Poland, Muscovy, lands of modern Latvia and Ukraine. Since about the 16th century it was a part of provincial districts, that were called "uyezd" in Muscovy and later Russian Empire. Each uyezd had several volosts that were subordinated to the uyezd city.
After the abolition of Russian serfdom in 1861, volost became a unit of peasant's local self-rule. A number of mirs are united into a volost, which has an assembly consisting of elected delegates from the mirs. These elect an elder (starshina) and, hitherto, a court of justice (volostnoy sud). The self-government of the mirs and volosts was, however, tempered by the authority of the police commissaries (stanovoi) and by the power of general oversight given to the nominated "district committees for the affairs of the peasants".
Volosts were abolished by the Soviet administrative reform of 1923–1929. Raions may be roughly called a modern equivalent of both volosts and uyezds.