Duminichi () is the name of several inhabited localities in Russia.
Urban localities Duminichi (settlement), Kaluga Oblast, a settlement in Duminichsky District of Kaluga Oblast
Rural localities Duminichi, Kaliningrad Oblast, a settlement in Zhilinsky Rural Okrug of Nemansky District of Kaliningrad Oblast Duminichi (railway station), Kaluga Oblast, a railway station in Duminichsky District, Kaluga Oblast Duminichi (village), Kaluga Oblast, a village in Duminichsky District, Kaluga Oblast