The Rába (German: Raab; Hungarian: Rába; Slovene: Raba [ˈráːba]; Prekmurian: Rába) is a river in southeastern Austria and western Hungary and a right tributary of the Danube. Its source is in Austria, some kilometres east of Bruck an der Mur below Heubodenhöhe Hill. It flows through the Austrian states of Styria and Burgenland, and the Hungarian counties of Vas and Győr-Moson-Sopron. It flows into a tributary of the Danube (Mosoni-Duna) in northwestern Hungary, in the city of Győr.