Radlin [ˈradlʲin] is a town in Wodzisław County, Silesian Voivodeship, in southern Poland, with 16,829 inhabitants (2023). It is located in southern part of the Voivodeship, close to the Czech border.

First mention of the settlement of Biertułtowy (which now is the center of Radlin) comes from 1305, as Bertholdi villa, when it was part of Piast-ruled Poland. The very name Radlin probably comes from the Polish word radło, which means ard.

In the 18th century, it was annexed by the Kingdom of Prussia. In the 19th century, Radlin was one of the biggest villages of the Rybnik County. Like other locations of Upper Silesia, it grew in the 19th century, when several enterprises were opened there – Coal Mine Marcel, Coke Plant Radlin. In 1922, after Silesian Uprisings, it became again part of Poland. Following the joint German-Soviet invasion of Poland, which started World War II in September 1939, Radlin was occupied by Germany until 1945.

Between 1975 and 1997 Radlin was a district of the city of Wodzisław Śląski.^[2]

• Górnik Radlin – men's volleyball team playing in Polish Volleyball League
• KS Górnik Radlin – men's football team, formerly playing in the top division^[3]
• KG Radlin – gymnastic club, founded in 1920, where 20 Polish Olympic athletes trained^[4][5]

• Graduation Tower – first graduation tower on an industrial side of Upper Silesia in Poland ^[6]
• Kolonia Emma – modernist estate of the nineteenth century designed as a "garden city"^[7]

• Bolesław Kominek (1903–1974), Cardinal of the Roman Catholic Church
• Leszek Blanik (born 1977), gymnast, World and Olympic champion

Radlin is twinned with:^[8]

• Genthin, Germany
• Mohelnice, Czech Republic
• Rohatyn, Ukraine

• Official website