Vovchansk was a city in Chuhuiv Raion, Kharkiv Oblast, northeastern Ukraine. It hosts the administration of Vovchansk urban hromada, on…Vovchansk was a city in Chuhuiv Raion, Kharkiv Oblast, northeastern Ukraine. It hosts the administration of Vovchansk urban hromada, one of the hromadas of Ukraine. The Vovcha river, a tributary of the Donets river, runs through the city.