Wilczak [ˈvilt͡ʂak] was a village in the administrative district of Gmina Biecz, within Gorlice County, Lesser Poland Voivodeship, in southern Poland. Now it is part of the village Strzeszyn. It lies approximately 4 kilometres (2 mi) south-west of Biecz, 9 km (6 mi) north-east of Gorlice, and 100 km (62 mi) south-east of the regional capital Kraków.