Pierzyny Duże [pjɛˈʐɨnɨ ˈduʐɛ] is a village in the administrative district of Gmina Kiełczygłów, within Pajęczno County, Łódź Voivodeship, in central Poland. It lies approximately 6 kilometres (4 mi) north-west of Kiełczygłów, 16 km (10 mi) north of Pajęczno, and 67 km (42 mi) south-west of the regional capital Łódź.