Konstantynów [kɔnstanˈtɨnuf] is a village in the administrative district of Gmina Nowa Brzeźnica, within Pajęczno County, Łódź Voivodeship, in central Poland. It lies approximately 5 kilometres (3 mi) west of Nowa Brzeźnica, 11 km (7 mi) south-east of Pajęczno, and 82 km (51 mi) south of the regional capital Łódź.