Zwardoń [ˈzvardɔɲ] is a village in the administrative district of Gmina Rajcza, within Żywiec County, Silesian Voivodeship, in the Zywiec Beskids mountain range in southern Poland, on the border with Slovakia. It lies approximately 10 kilometres (6 mi) west of Rajcza, 25 km (16 mi) south-west of Żywiec, and 82 km (51 mi) south of the regional capital Katowice. The village is mostly known for mountain tourism and as a border crossing point. In 1884, a railway line to Čadca was opened. Even though Zwardoń lies in Silesian Voivodeship, it historically belongs to Lesser Poland.