| Image Coa: | DEU Osterstedt COA.svg |
| Coordinates: | 54.1167°N 43°W |
| Image Plan: | Osterstedt in RD.png |
| State: | Schleswig-Holstein |
| District: | Rendsburg-Eckernförde |
| Amt: | Mittelholstein |
| Elevation: | 11 |
| Area: | 10.95 |
| Postal Code: | 25590 |
| Area Code: | 04874 |
| Licence: | RD |
| Gemeindeschlüssel: | 01 0 58 125 |
| Mayor: | Frank Schmidt |
Osterstedt is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany.