Piekło [ˈpjɛkwɔ] is a settlement in the administrative district of Gmina Kościerzyna, within Kościerzyna County, Pomeranian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) south-east of Kościerzyna and 48 km (30 mi) south-west of the regional capital Gdańsk.

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