Ostoja [ɔsˈtɔja] is a village in the administrative district of Gmina Zelów, within Bełchatów County, Łódź Voivodeship, in central Poland. It lies approximately 8 kilometres (5 mi) east of Zelów, 11 km (7 mi) north of Bełchatów, and 39 km (24 mi) south of the regional capital Łódź.