Ostrów [ˈɔstruf] is a village in the administrative district of Gmina Aleksandrów, within Piotrków County, Łódź Voivodeship, in central Poland. It lies approximately 7 kilometres (4 mi) north-west of Aleksandrów, 20 km (12 mi) south-east of Piotrków Trybunalski, and 62 km (39 mi) south-east of the regional capital Łódź. It is also the smallest village of Gmina Aleksandrów.