Kostiantynivka

Kostiantynivka is an industrial city in Donetsk Oblast in eastern Ukraine, on the Kryvyi Torets river, and an important railway junction. It was founded in 1812 by the landowner Panteleimon Nomikossov, who named the settlement after his eldest son Kostiantyn, and it stayed a small village until the Kursk-Kharkiv-Azov railway reached it in 1869. In the Soviet period it developed into a centre of metallurgy, chemicals and construction and became known as the capital of the glass industry of Ukraine. Together with neighbouring cities it forms the Kramatorsk agglomeration. It was the administrative centre of Kostiantynivka Raion until 2020, after which it joined Kramatorsk Raion. Its population was estimated at about 67,350 in 2022, then fell sharply as Russian offensives approached the city and it became an active front line in 2025.