Grodnica [ɡrɔdˈnit͡sa] is a village in the administrative district of Gmina Borek Wielkopolski, within Gostyń County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 9 kilometres (6 mi) west of Borek Wielkopolski, 10 km (6 mi) north-east of Gostyń, and 56 km (35 mi) south of the regional capital Poznań.