| Image Coa: | DEU Groß Sarau COA.svg |
| Coordinates: | 53.7667°N 54°W |
| Image Plan: | Groß Sarau in RZ.svg |
| State: | Schleswig-Holstein |
| District: | Herzogtum Lauenburg |
| Amt: | Lauenburgische Seen |
| Elevation: | 16 |
| Area: | 17.08 |
| Postal Code: | 23627 |
| Area Code: | 04509, 04541 |
| Licence: | RZ |
| Gemeindeschlüssel: | 01 0 53 043 |
| Website: | www.amt-lauenburgische-seen.de |
| Mayor: | Volker Niederhausen |
Groß Sarau is a municipality in the district of Lauenburg, in Schleswig-Holstein, Germany.