| Grade Lutter | |
|---|---|
| Location | North of Bad Lauterberg in Osterode am Harz district in Lower Saxony, Germany |
| Length | 5.9 km |
| Source height | over 660 m |
| Confluence | with the Krumme Lutter to form the Lutter |
| Mouth height | 316 m |
| Descent | 350 m |
| Basin | Lutter → Oder → Rhume → Leine → Aller → Weser |
| Catchment | 8.3 km² |
| Right tributaries | Ziegenkappe and Übelsbach |
The Grade Lutter is one of the two headstreams of the River Lutter in the South Harz. It rises at over 660 metres on the Aschentalshalbe. It then flows mainly in a southerly direction in order to merge with the Krumme Lutter near Kupferhütte to form the Lutter.