| Image Coa: | DEU Glasau COA.svg |
| Coordinates: | 54.05°N 41°W |
| Image Plan: | Glasau in SE.svg |
| State: | Schleswig-Holstein |
| District: | Segeberg |
| Amt: | Trave-Land |
| Elevation: | 42 |
| Area: | 18.82 |
| Postal Code: | 23719 |
| Area Code: | 04525 |
| Licence: | SE |
| Gemeindeschlüssel: | 01 0 60 025 |
| Website: | www.amt-trave- land.de |
| Mayor: | Henning Frahm |
Glasau is a municipality in the district of Segeberg, in Schleswig-Holstein, Germany. It is named after the estate and the manor house of the same name. Sarau is the largest village in the municipality; about half of the population lives there.
From March 29, 1945 until May 5, 1945 a concentration camp was established near Glasau. It was a subcamp to the Neuengamme concentration camp.[1]