Ozyorsk () or Ozersk () is the name of several inhabited localities in Russia.
Urban localities Ozyorsk, Chelyabinsk Oblast, a town in Chelyabinsk Oblast Ozyorsk, Kaliningrad Oblast, a town in Ozyorsky District of Kaliningrad Oblast
Rural localities Ozersk, Samara Oblast, a settlement in Bolsheglushitsky District of Samara Oblast