Lewiczyn [lɛˈvit͡ʂɨn] is a village in the administrative district of Gmina Lipowiec Kościelny, within Mława County, Masovian Voivodeship, in east-central Poland. It lies approximately 7 kilometres (4 mi) north-east of Lipowiec Kościelny, 7 km (4 mi) west of Mława, and 114 km (71 mi) north-west of Warsaw.