| Image Coa: | DEU Rehm-Flehde-Bargen COA.svg |
| Coordinates: | 54.2667°N 10°W |
| Image Plan: | Rehm-Flehde-Bargen in HEI.PNG |
| State: | Schleswig-Holstein |
| District: | Dithmarschen |
| Amt: | KLG Eider |
| Elevation: | 1 |
| Area: | 14.63 |
| Postal Code: | 25776 |
| Area Code: | 04882, 04837 |
| Licence: | HEI |
| Gemeindeschlüssel: | 01 0 51 092 |
| Divisions: | 3 |
| Mayor: | Daniela Donarski |
Rehm-Flehde-Bargen is a municipality in the district of Dithmarschen, in Schleswig-Holstein, Germany.