| Lutter | |
| Mouth Location: | Lachte north of Weyhausen |
| Mouth Coordinates: | 52.647°N 10.289°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Lower Saxony |
| Length: | 25km (16miles) |
| Source1 Elevation: | 93m (305feet) |
| Mouth Elevation: | 51m (167feet) |
| Basin Size: | 148km2 |
Lutter is a small river in the Lüneburg Heath, Lower Saxony, Germany, right tributary of the Lachte.
The Lutter has its source near (district of Eschede), southeast of Unterlüß. It passes Bargfeld (where it is joined by the Schmalwasser), Eldingen, and Luttern (a district of Eldingen). It flows into the river Lachte at, near Lachendorf, east of Celle.