Marianów [maˈrjanuf] is a village in the administrative district of Gmina Bielawy, within Łowicz County, Łódź Voivodeship, in central Poland. It lies approximately 3 kilometres (2 mi) south-east of Bielawy, 20 km (12 mi) west of Łowicz, and 33 km (21 mi) north-east of the regional capital Łódź.