Ostrowin [ɔsˈtrɔvin] is a village in the administrative district of Gmina Ostróda, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 12 kilometres (7 mi) south-east of Ostróda and 30 km (19 mi) south-west of the regional capital Olsztyn.