| Hennstedt | |
| Image Coa: | DEU Hennstedt (Dithmarschen) COA.svg |
| Coordinates: | 54.2667°N 19°W |
| Image Plan: | Hennstedt in HEI.png |
| State: | Schleswig-Holstein |
| District: | Dithmarschen |
| Amt: | KLG Eider |
| Elevation: | 15 |
| Area: | 21.94 |
| Postal Code: | 25779 |
| Area Code: | 04836 |
| Licence: | HEI |
| Gemeindeschlüssel: | 01 0 51 049 |
| Divisions: | 10 |
| Website: | www.amt-eider.de |
| Mayor: | Anne Riecke |
| Party: | FDP |
Hennstedt is a municipality in the district of Dithmarschen, in Schleswig-Holstein, Germany. It is situated approximately 10 km northeast of Heide. Hennstedt is the seat of the Amt Kirchspielslandgemeinde ("collective municipality") Eider.