Straszewo [straˈʂɛvɔ] (German: Dietrichsdorf in Westpreußen) is a village in the administrative district of Gmina Ryjewo, within Kwidzyn County, Pomeranian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-east of Ryjewo, 12 km (7 mi) north-east of Kwidzyn, and 67 km (42 mi) south-east of the regional capital Gdańsk.

Before 1772 the area was part of Kingdom of Poland, in 1772-1945 it belonged to Prussia and Germany, and in 1945 it returned to Poland. For the history of the region, see History of Pomerania.