Brzeg Dolny (German: Dyhernfurth) is a town in Wołów County, Lower Silesian Voivodeship in south-western Poland. It is located 31 km north-west of Wrocław on the Oder River, and is the site of a large chemical plant complex, PCC Rokita SA. As of December 2021, the town has a population of 12,395. It is part of the Wrocław metropolitan area.