Radostowo [radɔsˈtɔvɔ] is a village in the administrative district of Gmina Subkowy, within Tczew County, Pomeranian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) south-west of Subkowy, 13 km (8 mi) south of Tczew, and 43 km (27 mi) south of the regional capital Gdańsk.

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