Dunay () is the name of several inhabited localities in Russia.
Urban localities Dunay, Primorsky Krai, an urban-type settlement under the administrative jurisdiction of Fokino City Under Krai Jurisdiction, Primorsky Krai
Rural localities Dunay, Leningrad Oblast, a logging depot settlement under the administrative jurisdiction of Morozovskoye Settlement Municipal Formation, Vsevolozhsky District, Leningrad Oblast Dunay, Tver Oblast, a village in Vyshnevolotsky District of Tver Oblast Dunay, Vologda Oblast, a village in Berezovsky Selsoviet of Nyuksensky District of Vologda Oblast