Ostrówek [ɔsˈtruvɛk] is a village in the administrative district of Gmina Galewice, within Wieruszów County, Łódź Voivodeship, in central Poland. It lies approximately 5 kilometres (3 mi) north-east of Galewice, 14 km (9 mi) north-east of Wieruszów, and 93 km (58 mi) south-west of the regional capital Łódź.

The village has an approximate population of 410.