Piwnice [pivˈnit͡sɛ] is a settlement in the administrative district of Gmina Tczew, within Tczew County, Pomeranian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north-west of Tczew and 26 km (16 mi) south of the regional capital Gdańsk.

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