Orfordness-Havergate is a National Nature Reserve in Suffolk, covering 9 km². It is one of eight National Nature Reserves in the county. None of the National Nature Reserves in the county is larger. It lies within the Suffolk Coast & Heaths National Landscape.
Nearby nature reserves include Alde-Ore Estuary, Sandlings Forest and Leiston - Aldeburgh. The closest station is Melton (Suffolk), about 10.9 km to the west.