Szlagnowo [ʂlaɡˈnɔvɔ] is a village in the administrative district of Gmina Stare Pole, within Malbork County, Pomeranian Voivodeship, in northern Poland. It lies approximately 2 kilometres (1 mi) east of Stare Pole, 13 km (8 mi) east of Malbork, and 52 km (32 mi) south-east of the regional capital Gdańsk.

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