Bytom (Polish pronunciation: [ˈbɨtɔm] ; Silesian: Bytōm, Bytōń, German: Beuthen O.S.) is a city in Upper Silesia, in southern Poland. Located in the Silesian Voivodeship, the city is 7 km (4 mi) northwest of Katowice, the regional capital.
It is one of the oldest cities in the Upper Silesia, and the former seat of the Piast dukes of the Duchy of Bytom. Until 1532, it was in the hands of the Piast dynasty, then it belonged to the Hohenzollern dynasty. After 1623 it was a state country in the hands of the Donnersmarck family. From 1742 to 1945 the town was within the borders of Prussia and Germany, and played an important role as an economic and administrative centre of the local industrial region. Until the outbreak of World War II, it was the main centre of national, social, cultural and publishing organisations fighting to preserve Polish identity in Upper Silesia. In the interbellum and during World War II, local Poles and Jews faced persecution by Germany.