Koszowatka [kɔʂɔˈvatka] is a settlement in the administrative district of Gmina Somonino, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) south-west of Somonino, 10 km (6 mi) south-west of Kartuzy, and 35 km (22 mi) west of the regional capital Gdańsk.

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