Gajdy [ˈɡai̯dɨ] is a village in the administrative district of Gmina Zalewo, within Iława County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) north-west of Zalewo, 31 km (19 mi) north of Iława, and 65 km (40 mi) west of the regional capital Olsztyn.