Rudnik (Polish pronunciation: [ˈrudɲik]) is a village in the administrative district of Gmina Szamotuły, within Szamotuły County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 7 kilometres (4 mi) south-east of Szamotuły and 26 km (16 mi) north-west of the regional capital Poznań.