Śwignajno [ɕfiɡˈnai̯nɔ] (German: Schwignainen) is a village in the administrative district of Gmina Ruciane-Nida, within Pisz County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) south of Ruciane-Nida, 21 km (13 mi) west of Pisz, and 71 km (44 mi) east of the regional capital Olsztyn.