Żebry-Ostrowy [ˈʐɛbrɨ ɔsˈtrɔvɨ] is a village in the administrative district of Gmina Olszewo-Borki, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 11 kilometres (7 mi) west of Ostrołęka and 97 km (60 mi) north of Warsaw.