Piaśnica [pjaɕˈnit͡sa] is a former settlement in the administrative district of Gmina Krokowa, within Puck County, Pomeranian Voivodeship, in northern Poland. It lies approximately 9 kilometres (6 mi) north-west of Krokowa, 27 km (17 mi) north-west of Puck, and 64 km (40 mi) north-west of the regional capital Gdańsk.

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