Mioduńskie [mjɔˈduɲskʲɛ] is a village in the administrative district of Gmina Ryn, within Giżycko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 9 kilometres (6 mi) south-east of Ryn, 20 km (12 mi) south-west of Giżycko, and 76 km (47 mi) east of the regional capital Olsztyn.