Primorsk may refer to:

• Primorsk, Leningrad Oblast, a town in Leningrad Oblast, Russia, formerly Koivisto or Björkö
• Primorsk, Kaliningrad Oblast, an urban-type settlement in Kaliningrad Oblast, Russia, formerly Fischhausen
• Primorsk, Krasnoyarsk Krai, a rural-type settlement in Krasnoyarsk Krai, Russia
• Primorsk, Volgograd Oblast, an urban-type settlement in Volgograd Oblast, Russia
• The Russian-language name of Prymorsk, a town in Zaporizhzhia Oblast, Ukraine
• The former name of Dənizkənarı, Azerbaijan