Konstantki [kɔnsˈtantki] is a settlement in the administrative district of Gmina Parzęczew, within Zgierz County, Łódź Voivodeship, in central Poland. It lies approximately 4 kilometres (2 mi) east of Parzęczew, 15 km (9 mi) north-west of Zgierz, and 23 km (14 mi) north-west of the regional capital Łódź.