Ostrów [ˈɔstruf] is a village in the administrative district of Gmina Tarłów, within Opatów County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 9 kilometres (6 mi) north-east of Tarłów, 39 km (24 mi) north-east of Opatów, and 86 km (53 mi) east of the regional capital Kielce.