Oesterdeichstrich
| Oesterdeichstrich  | |
|---|---|
| Coordinates: 54°9′N 8°52′E / 54.150°N 8.867°E | |
| Country | Germany | 
| State | Schleswig-Holstein | 
| District | Dithmarschen | 
| Municipal assoc. | Büsum-Wesselburen | 
| Government | |
| • Mayor | Wilhelm Hollmann | 
| Area | |
|  • Total | 4.64 km2 (1.79 sq mi) | 
| Elevation | 0 m (0 ft) | 
| Population  (2023-12-31) | |
|  • Total | 220 | 
| • Density | 47/km2 (120/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| Postal codes | 25761 | 
| Dialling codes | 04834 | 
| Vehicle registration | HEI | 
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.