Ostrówek [ɔsˈtruvɛk] is a village in the administrative district of Gmina Stawiszyn, within Kalisz County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Stawiszyn, 17 km (11 mi) north of Kalisz, and 101 km (63 mi) south-east of the regional capital Poznań.