Alchevsk (, translit.Alchevs'k; ) is a city of oblast significance of Luhansk Oblast ( province) of eastern Ukraine. It is located approximately from the oblast capital, Luhansk. Population: .
Alchevsk is one of the largest industrial centers in the Donbas, and comprises a quarter of the entire oblast's production. The city economy depends on OJSC "Alchevsk Iron & Steel Works" and "Alchevsk Coke-Chemical Plant" companies.
The city was known as Voroshylovsk from 1931 to 1961, and then Komunarsk until 1991.