Buchach is a city located on the Strypa River in Chortkiv Raion of Ternopil Oblast (province) of Western Ukraine. It hosts the administration of Buchach urban hromada, one of the hromadas of Ukraine. Buchach rests 135 kilometres south-east of Lviv, in the historic region of Halychyna (Galicia). The city was located in the Polish–Lithuanian Commonwealth until the partitions, followed by the Habsburg monarchy (1772—1804), Austrian empire (1804—1867), Austro-Hungary (1867—1918), West Ukrainian People's Republic (1918—1919), and Poland (1919—1939). The population was estimated at 12,171.

Ternopil Oblast, also referred to as Ternopilshchyna or Ternopillia, is an oblast (province) of Ukraine. Its administrative center is Ternopil, through which flows the Seret, a tributary of the Dniester. Population: 1,021,713.