Konstantynów Łódzki is a town located in central Poland within the Łódź Voivodeship. It is situated in Pabianice County and has a population of 18,335 inhabitants as of 2020.
The town shares borders with several neighboring municipalities: it is bordered by Łódź to the east, Lutomiersk to the west, Aleksandrów Łódzki to the north, and Porszewice to the south.