Niesiołowice [ɲɛɕɔwɔˈvit͡sɛ] is a village in the administrative district of Gmina Stężyca, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) west of Stężyca, 27 km (17 mi) south-west of Kartuzy, and 54 km (34 mi) west of the regional capital Gdańsk.

For details of the history of the region, see History of Pomerania.