Chortkiv is a city in Chortkiv Raion, Ternopil Oblast, western Ukraine. It is the administrative center of Chortkiv Raion, housing the district's local administration buildings. Chortkiv hosts the administration of Chortkiv urban hromada, one of the hromadas of Ukraine. Population: 28,279.

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.