Wirwajdy [virˈvai̯dɨ] is a village in the administrative district of Gmina Ostróda, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) south-west of Ostróda and 44 km (27 mi) west of the regional capital Olsztyn.