Płęsy [ˈpwɛ̃sɨ] is a village in the administrative district of Gmina Dziemiany, within Kościerzyna County, Pomeranian Voivodeship, in northern Poland. It lies approximately 9 kilometres (6 mi) east of Dziemiany, 14 km (9 mi) south-west of Kościerzyna, and 63 km (39 mi) south-west of the regional capital Gdańsk.

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