Radostowice [radɔstɔˈvit͡sɛ] is a village in the administrative district of Gmina Suszec, within Pszczyna County, Silesian Voivodeship, in southern Poland.

Afterwards, the village passed under Bohemian (Czech) suzerainty, and in the 15th century, it became part of the newly formed Duchy of Pszczyna.

During the political upheaval caused by Matthias Corvinus the duchy was overtaken in 1480 by Casimir II, Duke of Cieszyn from the Piast dynasty, who sold it in 1517 to the Hungarian magnates of the Thurzó family, forming the Pless state country.

In the War of the Austrian Succession most of Silesia was conquered by the Kingdom of Prussia, including the village, and in 1871 it became part of the German Empire.

During the German occupation (World War II), in 1942–1943, the occupiers operated a subcamp of the Auschwitz concentration camp in the village, in which dozens of prisoners were subjected to forced labour.