Ozyorsk (also spelled Ozersk) is the name shared by several inhabited localities within Russia. The most prominent urban locality of this name is a town situated in the Chelyabinsk Oblast.
Additionally, Ozyorsk refers to a town located in the Ozyorsky District of Kaliningrad Oblast. There is also a rural settlement named Ozersk located in the Bolsheglushitsky District of the Samara Oblast.