Brzeszcze is a town in Oświęcim County, Lesser Poland Voivodeship in southern Poland, near Oświęcim. As of December 2021, the town has a population of 10,935. The history of the town dates back to the 15th century, and it was probably founded by Flemish settlers. Brzeszcze lies along regional roads nr. 933 and nr. 949, and its name comes from the brzost trees, which once were abundant in the Sola river valley. In the past the town was spelled Brzescie, Breszcze, Brescze, Brzeszce, and Brzesczye.

Lesser Poland Voivodeship is a voivodeship (province) in southern Poland. It has an area of 15,108 square kilometres (5,833 sq mi), and a population of 3,404,863 (2019).