Duminichi is the name of several inhabited localities and infrastructure points located within Russia. These locations are distributed across different administrative regions, specifically within the Kaluga and Kaliningrad Oblasts.
In the Kaluga Oblast, Duminichi exists as an urban settlement in the Duminichsky District. The region also contains a village named Duminichi in the same district, as well as a railway station bearing the name. Additionally, there is a rural settlement of Duminichi located in the Zhilinsky Rural Okrug of the Nemansky District in the Kaliningrad Oblast.