Druzhkivka, city, eastern Ukraine, at the confluence of the Kryvyy Torets and Kazenny Torets rivers. Druzhkivka, which before the Russian Revolution of 1917 was a small metallurgical centre, later developed an important machine-works as well as a metalworking industry. The area also has been important for the working of fireclays. Pop. (2001) 64,557; (2005 est.) 63,226.