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Bucha (Ukrainian: Буча, Ukrainian pronunciation: [ˈbut͡ʃɐ]) is a city in Ukraine's Kyiv Oblast. Administratively, it serves as the administrative center of Bucha Raion. It hosts the administration of , one of the hromadas of Ukraine. Its population is approximately 36,971. Bucha Day is celebrated in the city between 11 and 13 September.