Klasztorek [klaʂˈtɔrɛk] is a village in the administrative district of Gmina Gardeja, within Kwidzyn County, Pomeranian Voivodeship, in northern Poland. It lies approximately 15 kilometres (9 mi) north-east of Gardeja, 14 km (9 mi) south-east of Kwidzyn, and 83 km (52 mi) south-east of the regional capital Gdańsk.

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