Uglegorsk () is the name of several inhabited localities in Russia.
Urban localities Uglegorsk, Sakhalin Oblast, a town in Uglegorsky District of Sakhalin Oblast; administratively incorporated as a town of district significance
Rural localities Tsiolkovsky, Amur Oblast, a settlement in Amur Oblast; administratively incorporated as an urban okrug of the same name, which until 2015 was known as Uglegorsk.
See also Vuhlehirsk, a city in Ukraine called Uglegorsk in Russian language