Ternopil, known until 1944 mostly as Tarnopol, is a city in western Ukraine, located on the banks of the Seret. Administratively, it serves as the a…Ternopil, known until 1944 mostly as Tarnopol, is a city in western Ukraine, located on the banks of the Seret. Administratively, it serves as the administrative centre of Ternopil Oblast. Ternopil is one of the major cities of Western Ukraine and the historical regions of Galicia and Podolia. It is served by Ternopil Airport. The population of Ternopil was estimated at 225,004.