Röhr (German pronunciation: [ˈʁøːɐ̯]) is a river of North Rhine-Westphalia, Germany. It is a left tributary of the Ruhr river, itself a tributary of the Rhine. It flows into the Ruhr in Arnsberg-Hüsten.

It has the following main tributaries:

• The Sorpe is a left tributary stream of the Röhr, in Hochsauerlandkreis.
• The Linnepe is a right tributary stream of the Röhr, also in Hochsauerlandkreis.

• Sorpe Dam
• List of rivers of North Rhine-Westphalia