Halvergate Marshes
| Site of Special Scientific Interest | |
| Location | Norfolk |
|---|---|
| Grid reference | TG450050 |
| Coordinates | 52°35′17″N 1°36′54″E / 52.588°N 1.615°E |
| Interest | Biological |
| Area | 1,430.13 hectares (14.30 km2; 5.52 sq mi) |
| Notification | 1995 |
| Natural England website | |
The Halvergate Marshes are an area of grazing marsh in the east of the English county of Norfolk. They form part of the area of The Broads and lie between the River Bure and the River Yare, bordering Breydon Water on the east. The marshes cover an area of around 2,642 hectares (26.42 km2; 6,528.52 acres). An area of 1,432.7 hectares (3,540 acres) is a biological Site of Special Scientific Interest. Some areas are also in the Breydon Water Local Nature Reserve, the Broadland and Breydon Water Ramsar sites, The Broads Special Area of Conservation, and The Broads and Breydon Water Special Protection Areas.