| Image Coa: | DEU Bälau COA.svg |
| Coordinates: | 53.6167°N 47°W |
| Image Plan: | Bälau in RZ.svg |
| State: | Schleswig-Holstein |
| District: | Herzogtum Lauenburg |
| Amt: | Breitenfelde |
| Elevation: | 36 |
| Area: | 6.50 |
| Postal Code: | 23881 |
| Area Code: | 04542 |
| Licence: | RZ |
| Gemeindeschlüssel: | 01 0 53 005 |
| Mayor: | Hans Schmaljohann |
Bälau is a municipality in the Breitenfelde collective municipality (Amt) located in the Lauenburg district (Kreis) in southeastern Schleswig-Holstein, Germany.
Bälau covers 6.50 square kilometers (1600 acres) which are mostly used for agriculture, with some forest.