Ostrowy [ɔsˈtrɔvɨ] is a village in the administrative district of Gmina Somianka, within Wyszków County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) north-east of Somianka, 8 km (5 mi) west of Wyszków, and 49 km (30 mi) north-east of Warsaw.