Demyansky (masculine), Demyanskaya (feminine), or Demyanskoye (neuter) may refer to: Demyansky District, a district of Novgorod Oblast, Russia Demyanskoye, Tyumen Oblast, a rural locality (a selo) in Tyumen Oblast, Russia Demyanskoye, Yaroslavl Oblast, a rural locality (a village) in Yaroslavl Oblast, Russia