Kłosowo [kwɔˈsɔvɔ] is a village in the administrative district of Gmina Przodkowo, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north of Przodkowo, 12 km (7 mi) north-east of Kartuzy, and 23 km (14 mi) west of the regional capital Gdańsk.

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