| Type: | Stadt |
| Image Coa: | Wappen Grebenstein.png |
| Coordinates: | 51.45°N 34°W |
| Image Plan: | Grebenstein in KS mit Labels.svg |
| State: | Hesse |
| Region: | Kassel |
| District: | Kassel |
| Elevation: | 249 |
| Area: | 49.85 |
| Postal Code: | 34393 |
| Area Code: | 05674 |
| Licence: | KS or HOG |
| Gemeindeschlüssel: | 06 6 33 010 |
| Mayor: | Danny Sutor[1] |
| Leader Term: | 2022 - 28 |
Grebenstein (pronounced as /de/) is a town in the district of Kassel, in Hesse, Germany. It is located 16 km northwest of Kassel on the German Timber-Frame Road. In 1762 it was the scene of a skirmish between British and French troops during the Seven Years' War.