| Coordinates: | 54.2667°N 16°W |
| Image Plan: | Wiemerstedt in HEI.png |
| State: | Schleswig-Holstein |
| District: | Dithmarschen |
| Amt: | KLG Eider |
| Elevation: | 4 |
| Area: | 5.08 |
| Postal Code: | 25779 |
| Area Code: | 04836 |
| Licence: | HEI |
| Gemeindeschlüssel: | 01 0 51 133 |
| Website: | www.amt-eider.de |
| Mayor: | Jens Peters |
Wiemerstedt is a municipality in the district of Dithmarschen, in Schleswig-Holstein, Germany.