The Sopron Mountains (, ), occasionally also called the Ödenburg Mountains, is a low mountain range which forms the eastward extension of the Eastern Alps in Europe. It is part of the Alpokalja area of Hungary and also of the Burgenland. It is located close to the city of Sopron in western Hungary. Its highest point is the Brenntenriegel, at 606 metres above sea level. See also Geography of Hungary Rosalia Mountains () Alpokalja Mountain ranges of Hungary Mountain ranges of Burgenland Geography of Győr-Moson-Sopron County Sopron Mattersburg District Oberpullendorf District Eisenstadt-Umgebung District