Bilczew [ˈbilt͡ʂɛf] is a village in the administrative district of Gmina Sieroszewice, within Ostrów Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 4 kilometres (2 mi) north of Sieroszewice, 19 km (12 mi) east of Ostrów Wielkopolski, and 109 km (68 mi) south-east of the regional capital Poznań.