Yefimovsky (masculine), Yefimovskaya (feminine), or Yefimovskoye (neuter) may refer to:PeopleYelizaveta Yefimovskaya, wife of Ivan Chernyshyov, Russian field marshalPlacesYefimovsky District (1927–1963), a former district of Leningrad Oblast; merged into Boksitogorsky District Yefimovsky, several inhabited localities in Russia