| Image Coa: | DEU Grambek COA.svg |
| Coordinates: | 53.5667°N 51°W |
| Image Plan: | Grambek in RZ.svg |
| State: | Schleswig-Holstein |
| District: | Herzogtum Lauenburg |
| Amt: | Breitenfelde |
| Elevation: | 28 |
| Area: | 12.66 |
| Postal Code: | 23883 |
| Area Code: | 04542 |
| Licence: | RZ |
| Gemeindeschlüssel: | 01 0 53 037 |
| Website: | www.amt- breitenfelde.de |
| Mayor: | Christian Ries |
Grambek is a municipality in the district of Lauenburg, in Schleswig-Holstein, Germany.