Raions of Ukraine

A raion (Ukrainian: район, romanized: raion; pl.райони, raiony), often translated as a district, is the second-level administrative division in Ukraine. The modern raion system originated from the 1923–1929 administrative reform in the Soviet Union, including the Ukrainian Soviet Socialist Republic, and has remained part of Ukraine's administrative structure since the country's independence in 1991.

On 17 July 2020, the Verkhovna Rada (Ukraine's parliament) approved an administrative reform that reduced the number of raions from 490 to 136 and incorporated the former "cities of regional significance" into the newly formed raions. Most tasks previously performed at the raion level, including education, healthcare, sports facilities, culture, and social welfare, were transferred to hromadas, the subdivisions of raions.

The 136 new districts include ten in Crimea, which has been under Russian control since 2014, although it remains internationally recognized as part of Ukraine.