Sadowiec-Niwa [saˈdɔvjɛt͡s ˈniva] is a village in the administrative district of Gmina Działoszyn, within Pajęczno County, Łódź Voivodeship, in central Poland. It lies approximately 4 kilometres (2 mi) north-east of Działoszyn, 8 km (5 mi) west of Pajęczno, and 81 km (50 mi) south-west of the regional capital Łódź.