| Image Coa: | Lankau Wappen.png |
| Coordinates: | 53.6692°N 10.6669°W |
| Image Plan: | Lankau in RZ.svg |
| State: | Schleswig-Holstein |
| District: | Herzogtum Lauenburg |
| Amt: | Sandesneben-Nusse |
| Elevation: | 47 |
| Area: | 19.12 |
| Postal Code: | 23881 |
| Area Code: | 04542 |
| Licence: | RZ |
| Gemeindeschlüssel: | 01 0 53 081 |
| Website: | www.amt- sandesneben- nusse.de |
| Mayor: | Olaf Franz |
Lankau is a municipality in the district of Lauenburg, in Schleswig-Holstein, Germany.