Marwałd [ˈmarvau̯t] is a village in the administrative district of Gmina Dąbrówno, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 9 kilometres (6 mi) north-west of Dąbrówno, 23 km (14 mi) south of Ostróda, and 47 km (29 mi) south-west of the regional capital Olsztyn.