Polonia Bytom () is a Polish football club based in Bytom. Founded in 1920, the team won two championships, in 1954 and 1962. As of the 2025âÂÂ26 season, they compete in the I liga, the second tier of Polish football.
Polonia was founded on 4 January 1920 in the Upper Silesian city of Bytom, during the hectic months of the Silesian Uprisings. In late 1922, however, as a result of the Upper Silesia plebiscite, Bytom remained part of Germany and the club ceased to exist.
In May 1945, numerous players and officials of another Polish club, Pogoà  Lwów, arrived in Bytom and decided to revive Polonia. On 17 May 1945, the team played its first game in over two decades, defeating Warta Poznaà  3âÂÂ2.
Polonia is considered the continuation of Pogoà  Lwów; its logo is very similar to the logo of Lwów's team as well as their colours, red-blue.
Polonia achieved greatest success in the 1950s and 1960s, when it was one of the top teams in Poland. It has won the Polish championship twice, in 1954 and 1962. In 1952, 1958, 1959 and 1961 Polonia Bytom was the vice-champion of Poland. It reached the Polish Cup final in 1964. It performed well in the Intertoto Cup, reaching the final in the 1963âÂÂ64 season after defeating teams such as Red Star Belgrade, Sampdoria and fellow Polish side Odra Opole. It won the trophy in the 1964âÂÂ65 season after defeating teams like RC Lens, Schalke 04, Liège and SC Leipzig. Polonia also won the 1965 International Soccer League and finished third in the Polish league in the 1965âÂÂ66 and 1968âÂÂ69 seasons.
During that period, Polish international player and goalkeeper Edward Szymkowiak played for Polonia. The club stadium is named after him, and has a capacity of 5,500 spectators.
In June 2007 Polonia Bytom, after many years, returned to the Polish Ekstraklasa. However, in 2011, the club was relegated to the I liga after finishing bottom of the table with just six wins all season.
Polonia Bytom supporters were the first organised fan-club in Poland. They have introduced scarfs, flags and organised chants. Many of the other supporters groups were travelling to Bytom only to watch how Polonia's fans are cheering their club and behaving on the stadium.
The fans have friendships with fans of Arka Gdynia which dates back to 1974, one of the longest friendships in supporter history which has survived to date; with fans of Odra Opole since 1987, Zagà ÂÃÂbie Lubin since 2017, Góral à »ywiec since 2021 (officially), although they were allied with Góral for much longer than that, and Gryf Wejherowo.
Polonia biggest rivals are local teams Górnik Zabrze, Ruch Radzionków, Ruch Chorzów (The Oldest Silesian Derby) and Szombierki Bytom (Derby of Bytom). The other groups which are not very welcome in Bytom are fans from Zaglebie Sosnowiec, Legia Warszawa and Lechia Gdaà Âsk.
Polonia Bytom's hooligan firm is represented by MÃ Âodzi Chuligani Polonii Bytom (MChPB)