Tarpno [ˈtarpnɔ] is a village in the administrative district of Gmina Zalewo, within Iława County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north-east of Zalewo, 31 km (19 mi) north of Iława, and 55 km (34 mi) west of the regional capital Olsztyn.