Regimin is a village located in the Masovian Voivodeship in east-central Poland. It serves as the administrative seat for the local government unit known as Gmina Regimin, situated within Ciechanów County.
The settlement functions as a rural hub for its surrounding district. While it is categorized as a village, its role as a gmina seat establishes it as a central point of administration for the local area in the Masovian region.