| Marennes-Hiers-Brouage | |
| Commune Status: | Commune |
| Arrondissement: | Rochefort |
| Canton: | Marennes |
| Insee: | 17219 |
| Postal Code: | 17320 |
| Mayor: | Claude Balloteau[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Bassin de Marennes |
| Coordinates: | 45.8225°N -1.1052°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 21 |
| Area Km2: | 51.44 |
Marennes-Hiers-Brouage (pronounced as /fr/) is a commune in the Charente-Maritime department in southwestern France. It was established on 1 January 2019 by merger of the former communes of Marennes (the seat) and Hiers-Brouage.[2]