| Étang de l'Or | |
| Location: | Hérault |
| Coords: | 43.5822°N 4.045°W |
| Type: | brackish lagoon |
| Pushpin Map: | France |
| Catchment: | 400km2 |
| Basin Countries: | France |
| Length: | 15km (09miles) |
| Width: | 4km (02miles) |
| Area: | 30km2 |
| Depth: | 0.8m (02.6feet) |
| Elevation: | 0m (00feet) |
Étang de l'Or, or Golden Lagoon, is a large, shallow, brackish body of water in the Département of Hérault in the south of France. Its surface area is 30 km². Being directly connected to the Mediterranean Sea and to several adjacent lagoons, its elevation is zero.