Biadaszki [bjaˈdaʂki] is a village in the administrative district of Gmina Odolanów, within Ostrów Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) west of Odolanów, 11 km (7 mi) south-west of Ostrów Wielkopolski, and 102 km (63 mi) south-east of the regional capital Poznań.