Napiwoda [napiˈvɔda] (German: Grünfließ) is a village in the administrative district of Gmina Nidzica, within Nidzica County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) north-east of Nidzica and 43 km (27 mi) south of the regional capital Olsztyn. Prior to 1945 it was in Germany (East Prussia). After World War II the region was placed under Polish administration and ethnically cleansed according to the post-war Potsdam Agreement. The native German populace was expelled and replaced with Poles. The village has a population of 792.