Starobilsk (Ukrainian: Старобільськ, Russian: Старобельск) is a city in Luhansk Oblast, Ukraine. It serves as the administrative center of Starobilsk Raion. The modern settlement was founded in 1686, and it was granted city status in 1938. The city has a population of 16,267 (2021 est.). As a result of the 2022 Russian invasion of Ukraine, it was occupied by Russian forces on March 2, 2022.