Faustianka [fausˈtjanka] is a village in the administrative district of Gmina Rudniki, within Olesno County, Opole Voivodeship, in south-western Poland. It lies approximately 4 kilometres (2 mi) west of Rudniki, 21 km (13 mi) north-east of Olesno, and 61 km (38 mi) north-east of the regional capital Opole.