Kruszewnia [kruˈʂɛvɲa] is a village in the administrative district of Gmina Morąg, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 2 kilometres (1 mi) east of Morąg, 25 km (16 mi) north of Ostróda, and 40 km (25 mi) west of the regional capital Olsztyn.