Rostki [ˈrɔstki] is a village in the administrative district of Gmina Wydminy, within Giżycko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) south of Wydminy, 22 km (14 mi) south-east of Giżycko, and 101 km (63 mi) east of the regional capital Olsztyn.