Bibianki [biˈbjanki] is a village in the administrative district of Gmina Sieroszewice, within Ostrów Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 3 kilometres (2 mi) west of Sieroszewice, 17 km (11 mi) east of Ostrów Wielkopolski, and 110 km (68 mi) south-east of the regional capital Poznań.