Ostrykół (Polish pronunciation: [ɔsˈtrɨkuw]) is a village in the administrative district of Gmina Prostki, within Ełk County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) north of Prostki, 11 km (7 mi) south-east of Ełk, and 128 km (80 mi) east of the regional capital Olsztyn.