Zdrużno [ˈzdruʐnɔ] (German: Sdrusno (1938-45:Eichenborn)) is a settlement in the administrative district of Gmina Ruciane-Nida, within Pisz County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-west of Ruciane-Nida, 22 km (14 mi) west of Pisz, and 67 km (42 mi) east of the regional capital Olsztyn.