| Lohmgraben | |
| Mouth Coordinates: | 49.9878°N 9.128°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
Lohmgraben is a small river of Bavaria, Germany. It is formed by the confluence of two small streams: Fahrbach and Grundgraben. It flows into the Aschaff near Aschaffenburg.