Brzeszcze [ˈbʐɛʂt͡ʂɛ] is a town in Oświęcim County, Lesser Poland Voivodeship in southern Poland, near Oświęcim. As of 2006, Brzeszcze has about 12,000 citizens. 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 (Ulmus glabra) trees, which once were abundant in the Sola river valley.