Nieciecz (Polish pronunciation: [ˈɲɛtɕɛtʂ]) is a village in the administrative district of Gmina Nowe Miasteczko, within Nowa Sól County, Lubusz Voivodeship, in western Poland. It lies approximately 5 kilometres (3 mi) north-west of Nowe Miasteczko, 9 km (6 mi) south of Nowa Sól, and 28 km (17 mi) south-east of Zielona Góra.