Langmattgraben
Langmattgraben is a water body name:
- Langmattgraben (Alte Kinzig) , left arm of division of the Alte Kinzig (right division ram of Kinzig , to the Upper Rhine) near Willstätt , Ortenaukreis, Baden-Württemberg
- Langmattgraben (Eichel) , right tributary of the Eichel (to Saar) opposite Adamswiller , Département Bas-Rhin, Region Grand Est, France
- Langmattgraben (Murg) , left tributary of the "Hauensteiner" Murg (to the Upper Rhine) in Murg , Waldshut district, Baden-Württemberg