Płęsno [ˈpwɛ̃snɔ] is a settlement in the administrative district of Gmina Chojnice, within Chojnice County, Pomeranian Voivodeship, in northern Poland. It lies approximately 20 kilometres (12 mi) north of Chojnice and 90 km (56 mi) south-west of the regional capital Gdańsk.

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