Studzienica [stud͡ʑɛˈnit͡sa] is a village in the administrative district of Gmina Kiełczygłów, within Pajęczno County, Łódź Voivodeship, in central Poland. It lies approximately 3 kilometres (2 mi) south-east of Kiełczygłów, 10 km (6 mi) north of Pajęczno, and 69 km (43 mi) south-west of the regional capital Łódź.