Gierzwałd [ˈɡʲɛʐvau̯t] (German: Geierswalde) is a village in Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It is the seat of the gmina (administrative district) called Gmina Grunwald. It lies approximately 19 kilometres (12 mi) south-east of Ostróda and 38 km (24 mi) south-west of the regional capital Olsztyn.