| Type: | Gemeinde |
| Oesterdeichstrich | |
| Coordinates: | 54.15°N 60°W |
| Image Plan: | Oesterdeichstrich in HEI.PNG |
| State: | Schleswig-Holstein |
| District: | Dithmarschen |
| Amt: | Büsum-Wesselburen |
| Elevation: | 0 |
| Area: | 4.64 |
| Postal Code: | 25761 |
| Area Code: | 04834 |
| Licence: | HEI |
| Gemeindeschlüssel: | 01 0 51 084 |
| Mayor: | Wilhelm Hollmann |
Oesterdeichstrich is a municipality belonging to the Amt ("collective municipality") Büsum-Wesselburen in the district Dithmarschen in Schleswig-Holstein, Germany.
Oesterdeichstrich is a rural area situated directly east of the dike that connected Büsum with the mainland in 1585, hence its name (Oester/Ost = east, Deich = dike). This municipality includes the airport Heide-Büsum from where the airline Ostfriesische Lufttransport GmbH serves a flight connection to Helgoland.