Osłonka (German Grenzdorf) is a village in the administrative district of Gmina Nowy Dwór Gdański, within Nowy Dwór Gdański County, Pomeranian Voivodeship, in northern Poland. It lies approximately north-east of Nowy Dwór Gdański and east of the regional capital Gdańsk.
Before 1772 the area was part of Kingdom of Poland, 1772-1919 Prussia and Germany, 1920-1939 Free City of Danzig, 1939 - February 1945 Nazi Germany. For the history of the region, see History of Pomerania.
The village has a population of 60.