Kłodnia [ˈkwɔdɲa] is a village in the administrative district of Gmina Czersk, within Chojnice County, Pomeranian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) west of Czersk, 23 km (14 mi) north-east of Chojnice, and 82 km (51 mi) south-west of the regional capital Gdańsk.

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